Zusammenfassung
Copper(I) and rhodium(I) complexes prepared in situ from [Cu(OTf)(C6H6)(0.5)] and [Rh(cod)Cl](2) with a range of chiral 2,2'-bipyridines, 5,6-dihydro-1,10-phenanthrolines, 1,10-phenanthrolines and 2,2':6',2 "-terpyridines were assessed as chiral catalysts for the enantioselective cyclopropanation of styrene with diazoacetates and for the hydrosilylation of acetophenone with diphenylsilane. ...
Zusammenfassung
Copper(I) and rhodium(I) complexes prepared in situ from [Cu(OTf)(C6H6)(0.5)] and [Rh(cod)Cl](2) with a range of chiral 2,2'-bipyridines, 5,6-dihydro-1,10-phenanthrolines, 1,10-phenanthrolines and 2,2':6',2 "-terpyridines were assessed as chiral catalysts for the enantioselective cyclopropanation of styrene with diazoacetates and for the hydrosilylation of acetophenone with diphenylsilane. Enantioselectivities up to 68% in the cyclopropanation and up to 32% in the hydrosilylation were obtained. (C) 2000 Published by Elsevier Science Ltd.
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