The Chemistry of 1,3-Glycol Derivatives. III. The Preparation of 1,1-Bis(1-hydroxyalkyl)cyclopropanes and Their Halogenation
作者:Osamu Itoh、Yoshiro Kohmura、Yasunori Ichikawa、Makoto Umezu、Tsutomu Okita、Katsuhiko Ichikawa
DOI:10.1246/bcsj.53.146
日期:1980.1
related compounds, several kinds of 1,1-bis(1-hydroxyalkyl)cyclopropanes have been prepared. Some of the stereoisomers were separated, and their configurations were determined by the NMR study of the 1,3-dioxanes prepared by the acetallization of the diols. The diols were subjected to halogenation. Although the reactions of meso- and dl-bis(1-hydroxyethyl)cyclopropanes with thionyl chloride and phosphorus
通过1,1-二酰基环丙烷及其相关化合物的还原,制备了多种1,1-双(1-羟烷基)环丙烷。分离出一些立体异构体,并通过对二醇缩醛化制备的 1,3-二恶烷的 NMR 研究确定它们的构型。对二醇进行卤化。尽管内消旋和 dl-双 (1-羟乙基) 环丙烷与亚硫酰氯和五氯化磷的反应得到正常的二氯化物,伴有轻微的骨架重排,但立体特异性相当低。使用 ZnCl2-HCl,特异性完全丧失,并形成了大量的高烯丙基衍生物。讨论了反应机理。