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Diverse Fates of β‐Silyl Radical under Manganese Catalysis: Hydrosilylation and Dehydrogenative Silylation of Alkenes
Author(s) -
Yang Xiaoxu,
Wang Congyang
Publication year - 2018
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201800367
Subject(s) - hydrosilylation , silylation , chemistry , catalysis , manganese , organic chemistry , aryl , medicinal chemistry , alkyl
Manganese‐catalyzed hydrosilylation of alkenes has been underdeveloped for a long time. Herein, we describe a general, chemo‐ and regio‐ selective hydrosilylation of alkenes by using the Mn(CO) 5 Br catalyst with ample substrate scopes. Meanwhile, dehydrogenative silylation of aryl olefins can be selectively achieved upon the catalysis of dinuclear Mn 2 (CO) 10 . Mechanistic experiments revealed diverse fates of the common intermediate β‐silyl radical, namely, hydrogen atom transfer (HAT) for the hydrosilylation and organometallic β‐H elimination for the dehydrogenative silylation of olefins.