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Copper(ii)-catalyzed protoboration of allenes in aqueous media and open air

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Abstract

A method has been developed for the facile Cu(II)-catalyzed protoboration of monosubstituted allenes in aqueous media under atmospheric conditions. The reaction occurs site selectively, favoring internal alkene protoboration to afford 1,1-disubstituted vinylboronic acid derivatives (up to 93 : 7) with modest to good yields. The method has been applied to a variety of phenylallene derivatives as well as alkyl-substituted allenes.

Graphical abstract: Copper(ii)-catalyzed protoboration of allenes in aqueous media and open air

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Submitted
21 Apr 2020
Accepted
09 Jun 2020
First published
09 Jun 2020

New J. Chem., 2020, Advance Article
Article type
Paper

Copper(II)-catalyzed protoboration of allenes in aqueous media and open air

R. F. Snead, J. Nekvinda and W. L. Santos, New J. Chem., 2020, Advance Article , DOI: 10.1039/D0NJ02010A

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