Chemodivergent Synthesis of 7-Aryl/alkyl-6-hydroxy-1,4-oxazepan-5-ones and 2-[Aryl/alkyl(hydroxy)methyl]morpholin-3-ones from a Common Epoxyamide Precursor
作者:Joel Terán、David Aparicio、Luis Roa、Dino Gnecco、Jorge Juárez、María Orea、Angel Mendoza、Marcos Flores-Alamo、Laurent Micouin
DOI:10.1055/s-0030-1260064
日期:2011.7
We present here a regiospecific synthesis of 7-alkyl- or 7-aryl-6-hydroxy-1,4-oxazepan-5-ones and 2-[aryl(hydroxy)methyl]- or 2-(1-hydroxyalkyl)morpholin-3-ones from a diastereomeric mixture of trans-3-alkyl- or -3-aryl-N-(2-hydroxyethyl)-N-(1-phenylethyl)oxirane-2-carboxamides. This chemodivergent synthesis is easily controlled by an appropriate choice of cyclization reaction conditions.
我们在此提出了7-烷基-或7-芳基-6-羟基-1,4-氧氮杂环-5-酮和2-[芳基(羟基)甲基]-或2-(1-羟基烷基)吗啉-的区域特异性合成。来自反式-3-烷基-或-3-芳基-N-(2-羟乙基)-N-(1-苯乙基)环氧乙烷-2-甲酰胺的非对映异构体混合物的3-酮。通过适当选择环化反应条件可以轻松控制这种化学发散合成。