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	<title>Reaksi Dakin–West - Riwayat revisi</title>
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	<updated>2026-09-16T02:54:12Z</updated>
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		<title>Maintenance script: Presentation V4: sitasi, referensi, Math, Wikimedia Commons, dan atribusi</title>
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		<updated>2026-08-30T04:10:28Z</updated>

		<summary type="html">&lt;p&gt;Presentation V4: sitasi, referensi, Math, Wikimedia Commons, dan atribusi&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw-interface=&quot;&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Revisi sebelumnya&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revisi per 30 Agustus 2026 04.10&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Baris 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Baris 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&#039;&#039;&#039;Reaksi Dakin–West&#039;&#039;&#039; adalah suatu [[reaksi kimia]] yang mengubah [[asam amino]] menjadi [[Keton|keto-]][[amida]] menggunakan [[asam anhidrida]] dan basa (biasanya [[piridina]]). Nama reaksi ini berasal dari nama dua kimiawan [[Henry Drysdale Dakin]] (1880–1952) dan Randolph West (1890–1949). Pada tahun 2016, Schreiner dkk. melaporkan varian asimetris reaksi ini.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&#039;&#039;&#039;Reaksi Dakin–West&#039;&#039;&#039; adalah suatu [[reaksi kimia]] yang mengubah [[asam amino]] menjadi [[Keton|keto-]][[amida]] menggunakan [[asam anhidrida]] dan basa (biasanya [[piridina]]).&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;ref&amp;gt;Henry Drysdale Dakin. [http://www.jbc.org/content/78/1/91.citation A General Reaction of Amino Acids]. &#039;&#039;The Journal of Biological Chemistry&#039;&#039;. 1928. Vol. 78 (1). hlm. 91–104.&amp;lt;/ref&amp;gt;&amp;lt;ref&amp;gt;Henry Drysdale Dakin. [http://www.jbc.org/content/78/3/745.citation A General Reaction of Amino Acids. II]. &#039;&#039;The Journal of Biological Chemistry&#039;&#039;. 1928. Vol. 78 (3). hlm. 745–756.&amp;lt;/ref&amp;gt;&amp;lt;ref&amp;gt;Henry Drysdale Dakin. [http://www.jbc.org/content/78/3/757.citation Some Aromatic Derivatives of Substituted Acetylaminoacetones]. &#039;&#039;The Journal of Biological Chemistry&#039;&#039;. 1928. Vol. 78 (3). hlm. 757–764.&amp;lt;/ref&amp;gt;&amp;lt;ref&amp;gt;Richard H. Wiley. &#039;&#039;The Conversion of Amino Acids to Oxazoles&#039;&#039;. &#039;&#039;The Journal of Organic Chemistry&#039;&#039;. 1947. Vol. 12 (1). hlm. 43–46. doi:10.1021/jo01165a006.&amp;lt;/ref&amp;gt;&amp;lt;ref&amp;gt;G. L. Buchanan. [https://archive.org/details/sim_chemical-society-great-britain-chemical-society-reviews_1988-03_17_1/page/n38 The Dakin–West reaction]. &#039;&#039;Chemical Society Reviews&#039;&#039;. 1988. Vol. 17. hlm. 91–109. doi:10.1039/CS9881700091.&amp;lt;/ref&amp;gt; &lt;/ins&gt;Nama reaksi ini berasal dari nama dua kimiawan [[Henry Drysdale Dakin]] (1880–1952) dan Randolph West (1890–1949). Pada tahun 2016, Schreiner dkk. melaporkan varian asimetris reaksi ini.&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;ref&amp;gt;Raffael C. Wende. &#039;&#039;The Enantioselective Dakin-West Reaction&#039;&#039;. &#039;&#039;Angewandte Chemie International Edition&#039;&#039;. 2016. Vol. 55. hlm. 2719–2723. doi:10.1002/anie.201509863.&amp;lt;/ref&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Mekanisme reaksi ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Mekanisme reaksi ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Mekanisme reaksi Dakin–West melibatkan proses asilasi dan aktivasi asam &#039;&#039;&#039;1&#039;&#039;&#039; menjadi anhidrida campuran &#039;&#039;&#039;3&#039;&#039;&#039;. Gugus amida pada senyawa antara &#039;&#039;&#039;3&#039;&#039;&#039; berperan sebagai nukleofil pada proses siklisasi pembentukan azlakton &#039;&#039;&#039;4&#039;&#039;&#039;. Deprotonasi dan asilasi azlakton yang terbentuk menghasilkan senyawa antara &#039;&#039;&#039;6&#039;&#039;&#039;. Pembukaan cincin pada senyawa &#039;&#039;&#039;6&#039;&#039;&#039; yang diikuti oleh proses [[dekarboksilasi]] menghasilkan produk keto-amida yang diinginkan.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Mekanisme reaksi Dakin–West melibatkan proses asilasi dan aktivasi asam &#039;&#039;&#039;1&#039;&#039;&#039; menjadi anhidrida campuran &#039;&#039;&#039;3&#039;&#039;&#039;. Gugus amida pada senyawa antara &#039;&#039;&#039;3&#039;&#039;&#039; berperan sebagai nukleofil pada proses siklisasi pembentukan azlakton &#039;&#039;&#039;4&#039;&#039;&#039;. Deprotonasi dan asilasi azlakton yang terbentuk menghasilkan senyawa antara &#039;&#039;&#039;6&#039;&#039;&#039;. Pembukaan cincin pada senyawa &#039;&#039;&#039;6&#039;&#039;&#039; yang diikuti oleh proses [[dekarboksilasi]] menghasilkan produk keto-amida yang diinginkan.&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;ref&amp;gt;Rudolf Knorr. &#039;&#039;Zum Mechanismus der Dakin-West-Reaktion, I Die Reaktion von N-Acyl-sek.-aminosäuren mit Acetanhydrid&#039;&#039;. &#039;&#039;Chemische Berichte&#039;&#039;. 1970. Vol. 103 (8). hlm. 2598–2610. doi:10.1002/cber.19701030831.&amp;lt;/ref&amp;gt;&amp;lt;ref&amp;gt;Norman L. Allinger. &#039;&#039;Kinetic and mechanistic studies of the Dakin-West reaction&#039;&#039;. &#039;&#039;The Journal of Organic Chemistry&#039;&#039;. 1974. Vol. 39 (12). hlm. 1730–1735. doi:10.1021/jo00925a029.&amp;lt;/ref&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Sintesis umum keton ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Sintesis umum keton ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Variasi-variasi reaksi Dakin–West termutakhir memungkinkan banyak senyawa asam karboksilat yang terenolisasi (tidak hanya asam amino) untuk dikonversikan menjadi senyawa metil keton. Sebagai contohnya, asam β-aril karboksilat dapat diubah menjadi β-aril keton dengan menggunakan [[asetat anhidrida]] dan [[N-metilimidazola]]&#039;&#039;.&#039;&#039;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Variasi-variasi reaksi Dakin–West termutakhir memungkinkan banyak senyawa asam karboksilat yang terenolisasi (tidak hanya asam amino) untuk dikonversikan menjadi senyawa metil keton. Sebagai contohnya, asam β-aril karboksilat dapat diubah menjadi β-aril keton dengan menggunakan [[asetat anhidrida]] dan [[N-metilimidazola]]&#039;&#039;.&#039;&#039;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;ref&amp;gt;Khanh-Van Tran. &#039;&#039;Dakin−West Synthesis of β-Aryl Ketones&#039;&#039;. &#039;&#039;The Journal of Organic Chemistry&#039;&#039;. 2006. Vol. 71 (17). hlm. 6640–6643. doi:10.1021/jo0607966.&amp;lt;/ref&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Lihat pula ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Lihat pula ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* [[Sintesis Robinson–Gabriel]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* [[Sintesis Robinson–Gabriel]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Referensi ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Referensi ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;references /&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Sumber dan atribusi ==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;== Sumber dan atribusi ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Konten artikel ini diadaptasi dari [https://id.wikipedia.org/w/index.php?title=Reaksi+Dakin%E2%80%93West&amp;amp;oldid=29579306 Wikipedia bahasa Indonesia], revisi 29579306 (2026-08-15T00:15:32Z), yang tersedia berdasarkan lisensi Creative Commons Atribusi-BerbagiSerupa (CC BY-SA). Mohon gunakan konten ini secara bijak serta sesuai dengan ketentuan lisensi yang berlaku.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Konten artikel ini diadaptasi dari [https://id.wikipedia.org/w/index.php?title=Reaksi+Dakin%E2%80%93West&amp;amp;oldid=29579306 Wikipedia bahasa Indonesia], revisi 29579306 (2026-08-15T00:15:32Z), yang tersedia berdasarkan lisensi Creative Commons Atribusi-BerbagiSerupa (CC BY-SA). Mohon gunakan konten ini secara bijak serta sesuai dengan ketentuan lisensi yang berlaku.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;!-- WIKI_UNISSULA_PRESENTATION_V4 --&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Maintenance script</name></author>
	</entry>
	<entry>
		<id>https://wiki.unissula.ac.id/index.php?title=Reaksi_Dakin%E2%80%93West&amp;diff=28766&amp;oldid=prev</id>
		<title>Maintenance script: Impor teks terkontrol dari Wikipedia bahasa Indonesia; revisi 29579306; atribusi sumber disertakan.</title>
		<link rel="alternate" type="text/html" href="https://wiki.unissula.ac.id/index.php?title=Reaksi_Dakin%E2%80%93West&amp;diff=28766&amp;oldid=prev"/>
		<updated>2026-08-30T03:42:24Z</updated>

		<summary type="html">&lt;p&gt;Impor teks terkontrol dari Wikipedia bahasa Indonesia; revisi 29579306; atribusi sumber disertakan.&lt;/p&gt;
&lt;p&gt;&lt;b&gt;Halaman baru&lt;/b&gt;&lt;/p&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;Reaksi Dakin–West&amp;#039;&amp;#039;&amp;#039; adalah suatu [[reaksi kimia]] yang mengubah [[asam amino]] menjadi [[Keton|keto-]][[amida]] menggunakan [[asam anhidrida]] dan basa (biasanya [[piridina]]). Nama reaksi ini berasal dari nama dua kimiawan [[Henry Drysdale Dakin]] (1880–1952) dan Randolph West (1890–1949). Pada tahun 2016, Schreiner dkk. melaporkan varian asimetris reaksi ini.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Mekanisme reaksi ==&lt;br /&gt;
Mekanisme reaksi Dakin–West melibatkan proses asilasi dan aktivasi asam &amp;#039;&amp;#039;&amp;#039;1&amp;#039;&amp;#039;&amp;#039; menjadi anhidrida campuran &amp;#039;&amp;#039;&amp;#039;3&amp;#039;&amp;#039;&amp;#039;. Gugus amida pada senyawa antara &amp;#039;&amp;#039;&amp;#039;3&amp;#039;&amp;#039;&amp;#039; berperan sebagai nukleofil pada proses siklisasi pembentukan azlakton &amp;#039;&amp;#039;&amp;#039;4&amp;#039;&amp;#039;&amp;#039;. Deprotonasi dan asilasi azlakton yang terbentuk menghasilkan senyawa antara &amp;#039;&amp;#039;&amp;#039;6&amp;#039;&amp;#039;&amp;#039;. Pembukaan cincin pada senyawa &amp;#039;&amp;#039;&amp;#039;6&amp;#039;&amp;#039;&amp;#039; yang diikuti oleh proses [[dekarboksilasi]] menghasilkan produk keto-amida yang diinginkan.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Sintesis umum keton ==&lt;br /&gt;
Variasi-variasi reaksi Dakin–West termutakhir memungkinkan banyak senyawa asam karboksilat yang terenolisasi (tidak hanya asam amino) untuk dikonversikan menjadi senyawa metil keton. Sebagai contohnya, asam β-aril karboksilat dapat diubah menjadi β-aril keton dengan menggunakan [[asetat anhidrida]] dan [[N-metilimidazola]]&amp;#039;&amp;#039;.&amp;#039;&amp;#039;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Lihat pula ==&lt;br /&gt;
&lt;br /&gt;
* [[Sintesis Robinson–Gabriel]]&lt;br /&gt;
&lt;br /&gt;
== Referensi ==&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Sumber dan atribusi ==&lt;br /&gt;
&lt;br /&gt;
Konten artikel ini diadaptasi dari [https://id.wikipedia.org/w/index.php?title=Reaksi+Dakin%E2%80%93West&amp;amp;oldid=29579306 Wikipedia bahasa Indonesia], revisi 29579306 (2026-08-15T00:15:32Z), yang tersedia berdasarkan lisensi Creative Commons Atribusi-BerbagiSerupa (CC BY-SA). Mohon gunakan konten ini secara bijak serta sesuai dengan ketentuan lisensi yang berlaku.&lt;/div&gt;</summary>
		<author><name>Maintenance script</name></author>
	</entry>
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