Abstract The asymmetric benzylation of methyl 4-oxo-3-piperidinecarboxylate has been investigated, and methyl (R)-1,3-dibenzyl-4-oxopiperidine-3-carboxylate (3c) was obtained by using a phase-transfer catalyst O-allyl-N-9-anthracenemethyl-cindexnine bromide (1k). This synthetic method has the advantages of cheap materials, mild reaction conditions and moderate enantioselectivity, and is useful for
摘要 研究了 4-oxo-3-piperidinecarboxylate 甲酯的不对称苄基化反应,并通过相转移催化剂 O-制备了 (R)-1,3-dibenzyl-4-oxopiperidine-3-carboxylate (3c)。烯丙基-N-9-
蒽甲基-辛基丁
溴化物 (1k)。该合成方法具有原料便宜、反应条件温和、对映选择性适中等优点,可用于制备含有手性
3-苄基哌啶骨架的
生物活性化合物。图形概要