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Issue 41, 2015
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Photo Lewis acid generators: photorelease of B(C6F5)3 and applications to catalysis

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Abstract

A series of molecules capable of releasing of the strong organometallic Lewis acid B(C6F5)3 upon exposure to 254 nm light have been developed. These photo Lewis acid generators (PhLAGs) can now serve as photoinitiators for several important B(C6F5)3-catalyzed reactions. Herein is described the synthesis of the triphenylsulfonium and diphenyliodonium salts of carbamato- and hydridoborates, their establishment as PhLAGs, and studies aimed at defining the mechanism of borane release. Factors affecting these photolytic reactions and the application of this concept to photoinduced hydrosilylation reactions and construction of siloxane scaffolds are also discussed.

Graphical abstract: Photo Lewis acid generators: photorelease of B(C6F5)3 and applications to catalysis

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Article information


Submitted
04 Aug 2015
Accepted
24 Sep 2015
First published
25 Sep 2015

Dalton Trans., 2015,44, 18196-18206
Article type
Paper

Photo Lewis acid generators: photorelease of B(C6F5)3 and applications to catalysis

A. Y. Khalimon, B. K. Shaw, A. J. V. Marwitz, W. E. Piers, J. M. Blackwell and M. Parvez, Dalton Trans., 2015, 44, 18196
DOI: 10.1039/C5DT03008K

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