Tetrahedron Letters p. 5947 - 5950 (1992)
Update date:2022-07-31
Topics:
Krebs
Franken
Muller
Colberg
Cholcha
Wilken
Ohrenberg
Albrecht
Weiss
Tetra-tert.butylpyrazole (4) and tetra-tert.butylthiophene (11) were prepared starting from the seven membered cycloalkyne 1 and a reductive desulfurization in the last step. Some reactions of 4 and 11 are described. X-ray structural analyses of 11 and the corresponding S,S-dioxide were carried out.
View MoreLianyungang Yunbo Chemical Co.,Ltd.
Contact:518-81066110
Address:B907,Dongsheng"Mingdu Square,21-2 East Chaoyang Road,Xinpu,(sale department)
SuZhou Hua-Emy Chemical Import and Export Co., LTD.
Contact:+86-512-88804994; +86-512-88804550;
Address:710, Building B, International Trade Center, 12 Huanghelu, Changshu, Jiangsu,China
website:http://www.yuji-sifluo.com
Contact:+86-21-62456266
Address:Room 2603, No. 319, Xianxia Road, Changning District, Shanghai, 200051 China.
Contact:+86-571-86217390
Address:No.567 Dengcai Street,Sandun,Westlake District,Hangzhou310030,Zhejiang,China.
website:http://www.afinechem.com
Contact:+86-571-85134551
Address:No. 206 Zhen Hua Road, Hangzhou 310030, Zhejiang, China
Doi:10.1021/jo00938a024
(1974)Doi:10.1016/0022-328X(83)80228-9
(1983)Doi:10.1002/jhet.5570390630
(2002)Doi:10.1021/ac60197a002
(1963)Doi:10.1021/jo00940a011
(1974)Doi:10.1016/S0020-1693(00)81925-8
(1976)
