- 作者: 田憲儒 ; 葉忠川 ; 吳錫琛
- 作者服務機構: 成功大學化學系
- 中文摘要:
In the presence of a catalytic amount of 60% perchloric acid, 4-caetyl-3-substituted sydnones were obtained more conveniently with greater yields by the sonochemical reaction of 3-subsitituted sydnone with acetic anhydride. Some 4-acetylsydnones which are difficult to synthesize by a known process were obtained in 17-68% yields.
4-Bromo-3-(bromoaryl)sydnones with activated zinc powder dispersed in methanol were debrominated regioselectively by ultrasound in high yields (60-96%). 3-(2'-/4'-Amino-3',5'-dibromophenyl)sydnone is synthesized easily from 3-(2'/4'-aminophenyl)sydone by reduction, bromination and debromination subsequently. - 英文摘要: --
- 中文關鍵字: --
- 英文關鍵字: --