Journal of the Chemical Society. Perkin transactions I p. 1900 - 1908 (1981)
Update date:2022-08-05
Topics:
Caporusso, Anna Maria
Giacomelly, Giampaolo
Lardicci, Luciano
The reaction between trialkylalanes and 3-alkyl-, or 4-alkyl-, or 3,4-dialkyl-but-3-en-1-ynes (1) lead to products which correspond to metallation, reduction, and carbalumination processes.The extent of such reactions, and the regio- and stereo-selectivity of the carbalumination, are dependent on the enyne used.A mechanism is proposed involving tautomeric equilibria among several α-unsaturated organoaluminium intermediates to explain the formation of the carbalumination products. In the presence of catalytic amounts of nickel and manganese complexes, 3-en-1-ynes (1), by reacting with tri-isobutylaluminium, are dimerized selectively in a 'head-to-tail' fashion to conjugated tetraenes having different structures in relation to the different nature of the transition-metal complex.The preparative aspect of these induced reactions is discussed, and, in the light of previous reports, some mechanistic considerations are presented.
View MoreAnhui Sholon New Material Technology Co., Ltd.
website:http://www.sholonchem.com
Contact:+86-550-5261666
Address:4/F Block B, Beijing Chemical Building.No.520 Tianrun Road ,Science & Education Town Wujin District, Changzhou City Jiangsu Province
Taizhou Sunny Chemical Co.,Ltd
Contact:+86-523-86920899 +86-13951172783
Address:No.11 Xingyuang road, Gaoyong Chemical Industry Park, Gaogang Jiangsu China
Tianjin Tongde Biological Technology Co., Ltd.
Contact:86-22-23309138
Address:Room 402, bulidingE3 Detection certification park, XiQingDistrict, Tianjin City
Mollt Biochem Co., Ltd(expird)
Contact:+86-21-38682181
Address:shanghai ,china
Shanggao Ruiya Fine Chemicals Co., Ltd
Contact:+86-795-2592103
Address:Xingguang Nanlu,Shanggao County Industry Park
Doi:10.1021/jo01105a623
(1958)Doi:10.1016/0040-4020(82)85006-0
(1982)Doi:10.1016/S0008-6215(00)85654-2
(1980)Doi:10.1248/cpb.11.1423
(1963)Doi:10.1248/cpb.28.529
(1980)Doi:10.1246/bcsj.53.1781
(1980)
