作者:Jan Tönjes、Lukas Kell、Thomas Werner
DOI:10.1021/acs.orglett.3c03463
日期:2023.12.29
Herein we report a new method for the catalytic Appel reaction by P(III)/P(V) redox cycling at very low catalyst loadings of 1–2 mol % using low amounts of hexachloroacetone as the halogen source and phenylsilane as the terminal reductant. Twenty-six alcohols and nine epoxides containing a wide variety of functional groups were converted to the respective chlorides and dichlorides in yields of up to
在此,我们报告了一种通过 P(III)/P(V) 氧化还原循环进行催化 Appel 反应的新方法,催化剂负载量极低(1-2 mol%),使用少量六氯丙酮作为卤素源,苯基硅烷作为末端还原剂。含有多种官能团的 26 种醇和 9 种环氧化物被转化为各自的氯化物和二氯化物,产率高达 97%,对映体特异性高达 >99%,对映体比率高达 >99:1。