Aniline-terephthalaldehyde resin <i>p</i>-toluenesulfonate (ATRT) as a highly efficient and reusable catalyst for alcoholysis, hydrolysis, and acetolysis of epoxides
作者:Kiyoshi Tanemura、Tsuneo Suzuki
DOI:10.1080/00397911.2016.1223309
日期:2016.11.16
ABSTRACT Alcoholysis, hydrolysis, and acetolysis of epoxides were carried out in the presence of a catalytic amount of aniline-terephthalaldehyde resin p-toluenesulfonate (ATRT) to give the corresponding β-substituted alcohols in good yields. Alcoholysis and hydrolysis of epoxides catalyzed by ATRT proceeded faster than those by pyridinium p-toluenesulfonate (PPTS). GRAPHICAL ABSTRACT
Alcoholysis of Epoxides Catalyzed by Tetracyanoethylene and Dicyanoketene Acetals
作者:Yukio Masaki、Tsuyoshi Miura、Masahito Ochiai
DOI:10.1246/bcsj.69.195
日期:1996.1
A typical π-acid tetracyanoethylene and capto-dative olefin dicyanoketeneacetals were found to catalyze stereospecific alcoholysis of epoxides at the ambient temperature to 50 °C in good yields. Mildness and significant chemoselectivity of the catalysts were demonstrated by intactness of tetrahydropyranyl ether and ethylene acetal groups. A novel regioselectivity associated with anchimeric assistance
Catalytic activities of dicyanoketene acetals in alcoholysis of epoxides.
作者:Tsuyoshi MIURA、Yukio MASAKI
DOI:10.1248/cpb.43.523
日期:——
The catalytic activity of various types of capto-dative ethylenes has been investigated on alcoholysis of epoxides, and dicyanoketene dimethyl acetal (DCKDMA) and dicyanoketene ethylene acetal (DCKEA) are found to be efficient and mild catalysts.
研究发现,二氰基乙烯二甲缩醛(DCKDMA)和二氰基乙烯乙缩醛(DCKEA)是高效温和的催化剂。
A Synthetically Useful Regioselective Epoxide Ring-Opening Procedure
作者:Yue-jin Liu、Ting-yi Chu、Robert Engel
DOI:10.1080/00397919208019093
日期:1992.8
Abstract The reaction of alcohols with epoxides in the presence of boron trifluoride etherate has been investigated and found to proceed with variable regioselectivity depending on the substituents attached to the oxirane ring.