51944-10-6Relevant academic research and scientific papers
I2-Promoted [3+2] Cyclization of 1,3-Diketones with Potassium Thiocyanate: a Route to Thiazol-2(3H)-One Derivatives
An, Zhenyu,Liu, Yafeng,Yan, Rulong,Zhao, Pengbo
supporting information, p. 3240 - 3244 (2021/06/16)
An I2-promoted strategy has been developed for the synthesis of thiazol-2(3H)-one derivatives from 1,3-diketones with potassium thiocyanate. This [3+2] cyclization reaction involves C?S and C?N bond formation and exhibits good functional group tolerance. A series of thiazol-2(3H)-one derivatives are obtained in moderate to good yields. (Figure presented.).
A General Proline-Catalyzed Synthesis of 4,5-Disubstituted N-Sulfonyl-1,2,3-Triazoles from 1,3-Dicarbonyl Compounds and Sulfonyl Azide
Rajasekar, Shanmugam,Anbarasan, Pazhamalai
supporting information, p. 4563 - 4567 (2019/11/03)
An efficient proline-catalyzed synthesis of 4,5-disubstituted-N-sulfonyl-1,2,3-triazoles has been accomplished from 1,3-dicarbonyl compounds and sulfonyl azides. The developed reaction is suitable for various symmetrical and unsymmetrical 1,3-dicarbonyl compounds, tolerates various functional groups and affords 4,5-disubstituted-N-sulfonyl-1,2,3-triazoles in good yield with excellent regioselectivity. Rhodium-catalyzed denitrogenative functionalization of 4,5-disubstituted-N-sulfonyl-1,2,3-triazoles further demonstrates their utility in organic synthesis.
A convenient synthesis of 5/7-chloro-4H-1, 4-benzothiazines
Kumar, Gulshan,Gupta, Vandana,Gautam,Gupta
, p. 381 - 384 (2007/10/03)
5/7-Chloro-4H-1,4-benzothiazines have been synthesized by the condensation of sustituted 2-amino-3/5-chlorobenzenethiol with compounds containing active methylene group in dimethylsulfoxide which causes oxidative cyclization via enaminoketone intermediate. The IR, NMR and Mass spectra have been also included.
