Tandem radical [2+1] cycloaddition. Remarkable silyl substituent effect on the chemoselectivity of the radical cyclization reactions
摘要:
Tandem radical cyclization of bromides 1 with Bu3SnH is extremely sensitive to the nature of the substituent on the diene moiety. Bicyclo[3.1.0] skeleton 3 is obtained in the presence of the silyl substituent. The tert-butyl substituent gives exclusively six-membered ring products 15. Tributyltin radical addition to the double bond becomes predominant when the substituent is phenyl.
Weng, Wu-Wang; Luh, Tien-Yau, Journal of the Chemical Society. Perkin transactions I, 1993, # 22, p. 2687 - 2692
作者:Weng, Wu-Wang、Luh, Tien-Yau
DOI:——
日期:——
Tandem radical [2+1] cycloaddition. Remarkable silyl substituent effect on the chemoselectivity of the radical cyclization reactions
作者:Wu Wang Weng、Tien Yau Luh
DOI:10.1021/jo00073a002
日期:1993.10
Tandem radical cyclization of bromides 1 with Bu3SnH is extremely sensitive to the nature of the substituent on the diene moiety. Bicyclo[3.1.0] skeleton 3 is obtained in the presence of the silyl substituent. The tert-butyl substituent gives exclusively six-membered ring products 15. Tributyltin radical addition to the double bond becomes predominant when the substituent is phenyl.