Catalytic Asymmetric Cyanation of Alkylideneindolenines Generated from Sulfonylalkylindoles
作者:Kohsuke Ohmatsu、Yukino Furukawa、Daigo Nakaguro、Takashi Ooi
DOI:10.1246/cl.150581
日期:2015.10.5
The catalytic asymmetric phase-transfer cyanation of alkylideneindolenines, generated in situ from sulfonylalkylindoles, was developed. In the presence of sodium cyanide and a catalytic amount of chiral 1,2,3-triazolium salt, a series of sulfonylalkylindoles can be transformed into the corresponding chiral 3-sec-alkylindoles with good-to-high levels of efficiency and enantioselectivity.
研究人员开发了由磺酰基烷基吲哚原位生成的亚烷基吲哚啉的催化不对称相转移氰化反应。在氰化钠和一定量的手性 1,2,3-三唑盐催化下,一系列磺酰基烷基吲哚可转化为相应的手性 3-仲烷基吲哚,转化效率和对映选择性都达到了很好甚至很高的水平。