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Reduction of Carbon Oxides by an Acyclic Silylene: Reductive Coupling of CO
Author(s) -
Protchenko Andrey V.,
Vasko Petra,
Do Dinh Cao Huan,
Hicks Jamie,
Fuentes M. Ángeles,
Jones Cameron,
Aldridge Simon
Publication year - 2019
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201812675
Subject(s) - silylene , chemistry , carbon monoxide , oxygen , photochemistry , carbon dioxide , silylation , coupling (piping) , medicinal chemistry , catalysis , organic chemistry , silicon , materials science , metallurgy
Reactions of a boryl‐substituted acyclic silylene with carbon dioxide and monoxide are reported. The former proceeds through oxygen atom abstraction, generating CO (with rearrangement of the putative silanone product through silyl‐group transfer). The latter is characterized by reductive coupling of CO to give an ethynediolate fragment, which undergoes formal insertion into the Si−B bond. The net conversion of carbon dioxide with two equivalents of silylene offers a route for the three‐electron reduction of CO 2 to [C 2 O 2 ] 2− .