Rhodium(II)-Catalyzed Carbocyclization Reaction of α-Diazo Carbonyls with Tethered Unsaturation
作者:Albert Padwa、M. David Weingarten
DOI:10.1021/jo991938h
日期:2000.6.1
cycloalkenone carbenoid. The cyclized carbenoid was found to undergo both aromatic and aliphatic C-H insertion as well as cyclopropanation across a tethered pi-bond. Subjection of diazo phenyl acetic acid 3-phenylprop-2-ynyl ester to Rh(II) catalysis furnished 8-phenyl-1, 8-dihydro-2-oxacyclopenta[a]indenone in high yield. The formation of this compound involves cyclization of the initially formed carbenoid