Diastereoselective Darzens reactions of α-chloroesters, amides and nitriles with aromatic aldehydes under phase-transfer catalyzed conditions
作者:Shigeru Arai、Yukari Suzuki、Kazuyuki Tokumaru、Takayuki Shioiri
DOI:10.1016/s0040-4039(01)02248-1
日期:2002.1
development of the highly diastereoselective catalytic synthesis of glycidic acid derivatives via Darzens reaction is described. The reaction of α-chloroesters and amides with aromatic aldehydes smoothly proceeds in the presence of a quaternary ammonium salt as a phase-transfer catalyst to give the corresponding cis and trans desired products in satisfactory yields, respectively.
描述了通过Darzens反应的高非对映选择性催化缩水甘油酸衍生物的合成。在季铵盐作为相转移催化剂的情况下,α-氯酸酯和酰胺与芳族醛的反应平稳进行,从而分别以令人满意的产率得到相应的顺式和反式所需产物。