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 MoreGuangzhou Congen Pharmatec Co.,Ltd.
website:https://www.congenpharma.com
Contact:86-020-82350801
Address:Room 501, Building G11, South China Advanced Materials Innovation Park, 31 Kefeng Road, Science City, Guangzhou, China 510663
Anhui Gusheng Import&Export CO.,LTD
Contact:86-551-63662296
Address:Jinzhai Road NO.162 ,hefei, china
BAODING SINO-CHEM INDUSTRY CO.,LTD
Contact:0312-5956088
Address:NO.8 FUXING ROAD,CHINA
SHIFANG SUHONG CHEMICAL CO.,LTD
Contact:+86-838-2224563
Address:Room 1207 Zongchen Sunshine No.128 Taishan South Road,Deyang City,Sichuan China
LIAOYANG WANRONG CHEMICALS COMPANY LIMITED
Contact:86-419-2390789
Address:XINLI VILLAGE , DONG NINGWEI COUNTY,TAIZIHE DISTRICT, LIAOYANG , LIAONING
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)
