Evidence for the intermediacy of chromium-ketene complexes in the synthesis of. beta.-lactams by the photolytic reaction of chromium-carbene complexes with imines. …
…, G De Weck, S D'Andrea
文献索引：Hegedus,L.S.; De Weck,G.; D'Andrea,S. Journal of the American Chemical Society, 1988 , vol. 110, p. 2122
Abstract: Photolysis of chromium-carbene complexes in the presence of nucleophiles gives ketene-derived products. This observation, in conjunction with the stereoselectivity observed in the photolytic reactions of chromium-carbene complexes with imines to produce &lactam, suggests the intermediacy of photolytically generated, metal-coordinated ketenes. Photolysis of chromium-carbene complexes containing a chiral, optically active amino ...
