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Stoichiometric Reactions of CO 2 and Indium‐Silylamides and Catalytic Synthesis of Ureas
Author(s) -
Xu Maotong,
Jupp Andrew R.,
Stephan Douglas W.
Publication year - 2017
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.201708921
Subject(s) - stoichiometry , indium , catalysis , aryl , alkyl , chemistry , medicinal chemistry , organic chemistry
The indium compounds In(N(SiMe 3 ) 2 ) 2 Cl⋅THF ( 2 ) and In(N(SiMe 3 ) 2 )Cl 2 ⋅(THF) n ( 3 ) were shown to react with CO 2 to give [(Me 3 Si) 2 N)InX(μ‐OSiMe 3 )] 2 (X=N(SiMe 3 ) 2 4 , Cl 5 ). 0.05–2.0 mol % of the species 3 acts as a pre‐catalyst for the conversion of aryl and alkyl silylamines under CO 2 (2–3 atm) to give the corresponding ureas in 70–99 % yields. A proposed mechanism is supported by experimental and computational data.