Tetrahedron p. 1839 - 1842 (1980)
Update date:2022-09-26
Topics:
Guy, R. G.
Cousins, S.
Farmer, D. M.
Henderson, A. D.
Wilson, C. L.
Thiocyanogen does not react with simple alkynes under heterolytic conditions in benzene at 20-25 deg C.Under homolytic conditions, addition occurs readily giving mixtures of E- and Z-dithiocyanatoalkenes with high E:Z ratios; prolonged treatment with excess reagent also leads to mixtures of the dithiocyanatoalkenes but usually with lower E:Z ratios.A radical-chain mechanism, involving preferential anti-addition of thiocyanogen in an initial kinetically-controlled reaction and subsequent thermodynamically-controlled isomerisation of the adducts, is proposed.The influence of substituents on the reaction rates and product ratios is discussed in terms of their steric effects.
View MoreTianjin Emulsion Science&Technology Development Co.,Ltd
Contact:13901380442
Address:Vake Garden New Town New Yi Bai Road Beichen District Tianjin,China
Contact:+44 7958 511245
Address:PO Box 469, Manchester, UK
Ningbo Tide Imp. & Exp. Co., Ltd.
Contact:+86-571-8993 7933; +86-571-8993 6453
Address:7/F Anno Domini Building, Tower South, 8 Qiu Shi Road,Hangzhou,China.
TIANJIN ZHONGXIN CHEMTECH CO.,LTD.
Contact:86-022-89880739
Address:10B, Pan China International Center, No. 931 YingKou Road, TangGu, Tianjin, China, 300451
Lianyungang Ningkang Chemical Co., Ltd
Contact:.+86-518-88588008
Address:http://www.chemnk.com
Doi:10.1021/jo01278a059
(1967)Doi:10.1016/j.bmcl.2013.06.046
(2013)Doi:10.1016/S0022-1139(00)85218-5
(1980)Doi:10.1021/jo00142a025
(1982)Doi:10.1021/jm0311285
(2004)Doi:10.1016/S0008-6215(00)85907-8
(1980)
