4-Functionally Substituted 3-heterylpyrazoles: XII. 4-Chlorothieno[2,3-c]pyrazole-5-carbonyl Chlorides
摘要:
3-(4-Pyrazolyl)acrylic acids reacted with excess thionyl chloride in the presence of benzyltri-ethylammonium chloride affording 4-chlorothieno[2,3-clpyrazole-5-carbonyl chlorides which were converted into the corresponding acids, esters, and amides.
4-Functionally Substituted 3-heterylpyrazoles: XII. 4-Chlorothieno[2,3-c]pyrazole-5-carbonyl Chlorides
作者:M. K. Bratenko、V. A. Chornous、M. V. Vovk
DOI:10.1023/b:rujo.0000003171.20020.00
日期:2003.6
3-(4-Pyrazolyl)acrylic acids reacted with excess thionyl chloride in the presence of benzyltri-ethylammonium chloride affording 4-chlorothieno[2,3-clpyrazole-5-carbonyl chlorides which were converted into the corresponding acids, esters, and amides.