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SIMes
SIMes is an N-heterocyclic carbene. It is a white solid that dissolves in organic solvents. The compound is used as a ligand in organometallic chemistry. It is structurally related to the more common ligand IMes but with a saturated backbone (the S of SIMes indicates a saturated backbone). It is slightly more flexible and is a component in Grubbs II.〔Steven P. Nolan "N-Heterocyclic Carbenes in Synthesis" Wiley-VCH, 2006. ISBN 978-3-527-60940-6〕 It is prepared by alkylation of trimethylaniline by dibromoethane followed by ring closure and dehydrohalogenation.〔http://www.nature.com/protocolexchange/protocols/2488#/procedure〕 ==References== 〔
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