Chemistry Letters, Vol.31, No.8, 846-847, 2002
Highly enantioselective intramolecular cyclopropanation of alkenyl diazo ketones using Ru(salen) as catalyst
Intramolecular cyclopropanation of alkenyl diazoketones was found to proceed in a highly enantioselective manner by using optically active (nitroso)(salen)ruthenium(II) complex 1 as the catalyst under photo-irradiation.