作者:Frolov, Andriy I.、Chuchvera, Yaroslav O.、Ostapchuk, Eugeniy N.、Druzhenko, Tetiana V.、Volochnyuk, Dmytro M.、Ryabukhin, Serhiy V.
DOI:10.1021/acs.joc.3c02628
日期:——
generated in the α-position of various ketones via synthesis of enaminone (step 1) and treatment with organomagnesium (step 2) with subsequent catalytic hydrogenation (step 3, 1° alkyl) or organocopper reagents (step 4, 2° alkyl). Tolerance toward ester, Boc-protected amine, and α-fluoro-substituted ketone moieties was demonstrated. The suitability of the method for late-stage natural product modification
开发了 α-亚甲基酮的正式 α-烷基化的概念策略。通过合成烯胺酮(步骤 1)并用有机镁处理(步骤 2)以及随后的催化氢化(步骤 3,1° 烷基)或有机铜试剂(步骤 3),在各种酮的 α 位生成不同的 1° 和 2° 烷基取代基(步骤4,2°烷基)。证明了对酯、Boc 保护的胺和 α-氟取代的酮部分的耐受性。该方法适用于天然产物后期修饰。