Enantioface-differentiating epoxidation of alkylidenemalononitriles with molecular oxygen, catalyzed by chiral tertiary amines.
作者:KATSUMI NANJO、KUNIO SUZUKI、MINORU SEKIYA
DOI:10.1248/cpb.29.336
日期:——
The present paper describes the enantioface-differentiaing epoxidation of alkylidenemalononitriles with molecular oxygen, catalyzed by chiral tertiary amines. In the light of the by-product formation, the reaction path was concluded to involve intermolecular nucleophilic attack of a hydroperoxide intermediate catalyzed by a chiral tertiary amine. A similar epoxidation was demonstrated with cumylhydroperoxide in the presence of nicotine.
本文介绍了手性叔胺催化亚烷基丙二腈与分子氧的对映面差异环氧化反应。根据副产物的形成情况,推断反应路径涉及手性叔胺催化的过氧化氢中间体的分子间亲核反应。在尼古丁存在的情况下,过氧化积酰也发生了类似的环氧化反应。