Synthesis 2020; 52(08): 1239-1246
DOI: 10.1055/s-0039-1690741
special topic
© Georg Thieme Verlag Stuttgart · New York

Cobalt(III)-Catalyzed Diastereoselective Three-Component C–H Bond Addition to Butadiene and Activated Ketones

Zican Shen
,
Chen Li
,
Brandon Q. Mercado
,
Department of Chemistry, Yale University, New Haven, CT 06520, USA   Email: jonathan.ellman@yale.edu
› Author Affiliations
This work was supported by the National Institutes of Health (R35GM122473).
Further Information

Publication History

Received: 02 October 2019

Accepted after revision: 22 October 2019

Publication Date:
07 November 2019 (online)


Published as part of the Special Topic Domino C–H Functionalization Reaction/Cascade Catalysis

Abstract

A highly diastereoselective three-component C–H bond addition across butadiene and activated ketones is described. This transformation provides homoallylic tertiary alcohols through the formation of two C–C σ-bonds and with complete selectivity for an E-alkene isomer. The reaction exhibits good scope with respect to activated ketone inputs, including highly strained cyclic and electron-deficient cyclic and acyclic ketones. Additionally, high diastereoselectivities were achieved for alcohols prepared from unsymmetrical ketones.

Supporting Information