Debromination of 3-Aryl-4-bromosydnones with Sodium Borohydride
作者:Kenneth Turnbull
DOI:10.1055/s-1986-31606
日期:——
Debromination of 4-bromo-3-(2-substituted aryl) sydnones 1 with sodium borohydride in methanol occurs readily to give good yields of the corresponding parent sydnones 2, except in those cases where the aryl substituent also reacts. The utility of the process for both sydnone purification and the preparation of novel sydnones has been examined briefly.
Turnbull, Kenneth; Blackburn, Thomas L.; Esterline, Daniel T., Journal of Heterocyclic Chemistry, 1990, vol. 27, # 5, p. 1259 - 1263
作者:Turnbull, Kenneth、Blackburn, Thomas L.、Esterline, Daniel T.
DOI:——
日期:——
Transformation of the sydnone ring into oxadiazolinones. A convenient one-pot synthesis of 3-aryl-5-methyl-1,3,4-oxadiazolin-2-ones from 3-arylsydnones and their antimicrobial activity
作者:Shanta G Mallur、Bharati V Badami
DOI:10.1016/s0014-827x(99)00103-2
日期:2000.1
4-oxadiazolin-2-ones (IIIa-u) by a single-step reaction with bromine in acetic anhydride. In the preliminary screening of all these compounds, the halogen-substituted derivatives have shown antimicrobialactivities equal to those of the standard drugs used.