Radical trans-Hydroboration of Substituted 1,3-Diynes with an N-Heterocyclic Carbene Borane

Autor: Tsuyoshi Taniguchi, Kosuke Takahashi, Steven J. Geib, Dennis P. Curran, Katsuhiro Maeda
Rok vydání: 2021
Předmět:
Zdroj: Organic Letters. 23:1071-1075
ISSN: 1523-7052
1523-7060
DOI: 10.1021/acs.orglett.0c04284
Popis: Monohydroboration of substituted 1,3-diynes with an N-heterocyclic carbene borane (NHC-borane) occurs under radical conditions using an azo initiator, such as ACCN and AIBN, and a thiol as a polarity-reversal catalyst. The reaction is highly regio- and stereoselective and provides stable NHC-(E)-alkynylalkenylboranes.
Databáze: OpenAIRE