Journal of the Chemical Society. Perkin transactions II p. 1157 - 1160 (1989)
Update date:2022-09-26
Topics:
Becker, James Y.
Bernstein, Joel
Bittner, Shmuel
Harlev, Eli
Sarma, Jagarlapudi A. R. P.
The Lehnert reagent (TiCl4-pyridine) has been shown not to activate the carbonyl groups of dithiophenyl-substituted benzoquinone isomers in nucleophilic attack by dicyanomalonate.Instead, 1,4-addition to the quinone ring results in the title benzofuran derivatives.The reaction mechanism is shown to be unlike those where carbon atoms are attached to the quinone ring or when the sulphur atom is part of an aromatic system.The crystal data of 2-amino-5-hydroxy-4,6-diphenylthiobenzofuran-3-carbonitrile are: triclinic, P1, a = 10.092(6), b = 10.828(7), c = 9.976(6) Angstroem, α = 73.35(5), β = 100.13(4), γ = 116.13(4) deg, V = 936.2(9) Angstroem3, Z = 2.The proposed reaction mechanism and the crystal structure of the title compound are presented and discussed.
View MoreHangzhou Yingshanhua Pigment Chemicals Co.,Ltd.
Contact:+86-0150-58101658
Address:Nanyang Economic DevelopmentZong,Xiaoshan,Hangzhou,China
BAODING SINO-CHEM INDUSTRY CO.,LTD
Contact:0312-5956088
Address:NO.8 FUXING ROAD,CHINA
Zhejiang Allied Chemical Co.,Ltd
Contact:18967038207
Address:Area A-30, High-tech Industrial Park, Quzhou, Zhejiang, China.
website:http://www.glschina.com
Contact:+86-21-61263310
Address:519 Ziyue Road, Shanghai, 200241, China.
Shandong Xinhua Pharmaceutical Co.,Ltd
website:http://www.xhzy.com
Contact:+86-533-2196801
Address:1 lutai road,zhangdian dis,Zibo City
Doi:10.1021/jo9722764
(1998)Doi:10.1016/S0040-4020(01)81729-4
(1988)Doi:10.1039/P19880001631
(1988)Doi:10.1055/s-1988-27535
(1988)Doi:10.1021/ja00229a029
(1988)Doi:10.1039/b820551e
(2009)
