Journal of the Chemical Society. Perkin transactions I p. 360 - 365 (1981)
Update date:2022-07-30
Topics:
Askari, Syed H.
Moss, Stephen F.
Taylor, David R.
1-Chloro-1,4-diaryldiazabutadienes (1) react with thiourea to give hydrochlorides of 4-amidino-2,5-diaryl-Δ2-1,3,4-thiadiazolines from which the corresponding free bases (2) are obtained by treatment with cold alkali.Imidazolidine-2-thione (ethylenethiourea) reacts similarly with the chlorodiazabutadienes (1a,b) to give, after treatment with cold alkali, 4-(4,5-dihydroimidazolin-2-yl)-2,5-diaryl-Δ2-1,3,4-thiadiazolines (6a,b).In the presence of an excess of sodium borohydride the reaction of (1a) with thiourea yielded some N2-benzylthiobenzoylhydrazine (12), compatible with the capture of an intermediate iminium ion.A mechanism is suggested for these reactions.
View MoreJi'an Kexin Trade Co., Ltd.(expird)
Contact:86-0796-8187704 18507063190
Address:ji'an jiangxi
website:http://www.chemdow.com
Contact:0086-10-82435335
Address:Room 401,Unit 3,4th Floor,Shangdijiayuan,Shangdi East Road, Haidian District,Beijing
Contact:86-512-69362780,69362785
Address:No.69 Weixin Road,Weiting Town,Suzhou Industrial Park
Zhejiang Chemline International Co., Ltd.
Contact:+86-571-88062298
Address:Hengdian Industry Area, Dongyang, Zhejiang, China
Neworld Chemical Co., Ltd Shanghai(expird)
Contact:+86-21-62202658
Address:11F, Blvd 2, No. 1969 PuXing Rd, Shanghai
Doi:10.1039/b915681j
(2010)Doi:10.1021/jo061359u
(2006)Doi:10.1016/j.tetasy.2006.07.009
(2006)Doi:10.1016/j.ejmech.2018.01.046
(2018)Doi:10.1039/c4cc06864e
(2015)Doi:10.1246/cl.1981.531
(1981)
