中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | dimethyl 4-amino-1-phenyl-3-(thiophen-2-yl)pyrazolo[3,4-b]pyridine-5,6-dicarboxylate | 173260-07-6 | C20H16N4O4S | 408.437 |
3-Methyl-1-sulfonic acid imidazolium trichlorido copper (II) [Msim]CuCl3} was prepared and used as a new catalyst for the preparation of 5-amino-1H-pyrazole-4-carbonitriles. In this reaction, the pyrazole ring was formed by an anomeric and vinylogous anomeric effect in the structure of the product.