Journal of the Chemical Society. Perkin transactions I p. 1629 - 1633 (1996)
Update date:2022-08-28
Topics:
Tornus, Ingo
Schaumann, Ernst
Adiwidjaja, Gunadi
Reaction of 3-dimethylamino-2,2-diphenyl-2H-azirine 3a with N-sulfonylalkylamines 2a,b provides 1,2,5-thiadiazoles 5a,b, whereas use of N-carbonylsulfonylamines 2c,e as reaction partners primarily results in 1,2,3-oxathiazoles 6a,b which isomerise to the corresponding thiadiazoles 5c,d on treatment with silica gel at room temperature. In contrast, use of 2-alkyl-3-dimethylamino-2-phenyl-2H-azirines 3b,c in the reaction with the N-sulfonylamide 2c and the N-sulfonylcarbamates 2e,f leads to mixtures of thiadiazoles 5 and oxathiazoles 6 along with isomeric acrylamidines 7.
View Morezhengzhou Triz Pharma-Tech Co., Ltd
website:http://www.Trizpharma-tech.com
Contact:+86-0371-86597269，53392065
Address:High-tech Industrial Development Zone, Zhengzhou City, NO.7 Holly Street
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
Chemvon Biotechnology Co. Ltd.
website:http://www.chemvon.com
Contact:86-21-58550039;86-21-31268550-8004
Address:Suite B-10#, 6999 Chuansha Road, Pudong District, Shanghai 201202, China
website:http://www.sagechem.com
Contact:+86-571-86818502
Address:Room C1301, New Youth Plaza, 8 Jia Shan Road, Hangzhou, China
Qingdao Kylin Trading Co., Ltd.
Contact:0086-532-68979884/58972912/68972263/65/88171519
Address:Room 2308,A building International Trade Center No.230 Changjiang Middle Road of Qingdao Economic Development Zone,Shandong,China.
Doi:10.1021/ol061566g
(2006)Doi:10.1002/prac.19943360102
(1994)Doi:10.1016/j.tet.2006.11.013
(2007)Doi:10.1039/JS8742700837
(1874)Doi:10.1016/0031-9422(92)90049-V
(1992)Doi:10.1016/j.mcat.2019.110695
(2020)
