ChemCatChem

Asymmetric Addition of Cyanide to β??Nitroalkenes Catalysed by Chiral Salen Complexes of Titanium (IV) and Vanadium (V)

M North, JM Watson

Index: North, Michael; Watson, James M. ChemCatChem, 2013 , vol. 5, # 8 p. 2405 - 2409

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Citation Number: 12

Abstract

Abstract Structurally well-defined bimetallic titanium (IV)(salen) and monometallic vanadium (V)(salen) complexes have been used as catalysts for the asymmetric addition of trimethylsilyl cyanide to β-nitroalkenes to produce chiral nitronitriles with ee values in the range of 79–89% and conversions up to 100% at 0 C. The reaction conditions (solvent, temperature, time and vanadium complex counter-ion) were optimised, and it was shown ...