A Convenient Procedure for the Synthesis of Secondary Alcohols From 1-Alkynes via the Alkylation of Boron-Stabilized Carbanions
作者:George ZWEIFEL、Richard FISHER、Arbeit HORNG
DOI:10.1055/s-1973-22125
日期:——
Photocatalytic carbanion generation – benzylation of aliphatic aldehydes to secondary alcohols
作者:Karsten Donabauer、Mitasree Maity、Anna Lucia Berger、Gregory S. Huff、Stefano Crespi、Burkhard König
DOI:10.1039/c9sc01356c
日期:——
present a redox-neutral method for the photocatalytic generation of carbanions. Benzylic carboxylates are photooxidized by single electron transfer; immediate CO2 extrusion and reduction of the in situ formed radical yields a carbanion capable of reacting with aliphatic aldehydes as electrophiles giving the Grignard analogous reaction product.