Cyclic 2-alkyl-1,3-alkanediones are ubiquitous structural motifs in many natural products of biological importance. Reported herein is an AlCl3·MeNO2-mediated Dieckmann cyclization reaction of general synthetic utility that enables direct access to complex 2-alkyl-1,3-dione building blocks from readily available dicarboxylic acid and acid chloride substrates. This new strategy enables direct synthetic
在许多具有
生物学重要性的
天然产物中,环状2-烷基-1,3-烷二酮是普遍存在的结构基序。本文报道了一般合成用途的AlCl 3 ·MeNO 2介导的Dieckmann环化反应,其能够从容易获得的二
羧酸和酰
氯底物直接进入复杂的2-烷基-1,3-二酮结构单元。这项新策略可以通过一次合成转化,从商业材料直接合成获得香蒲酮植物信息素。