Ene Reactions of Arylmethylenedihydropyrazoles
with 4-Phenyl-3<i>H</i>-1,2,4-triazole-3,5(4<i>H</i>)-dione
作者:G. Martinez、E. Klimova、B. Klimova、Z. Damian、S. Ortega、I. Mendez、P. Gutiérrez、G. Vazquez
DOI:10.1055/s-2002-33917
日期:——
2-Acetyl-3-aryl-7-arylmethylene-3,4,5,6,7,9-hexahydro-2H-indazoles enter into the ene reaction with 4-phenyl-3H-1,2,4-triazole-3,5(4H)-dione to give the corresponding monoene adducts. Under analogous conditions. 3-aryl-7-arymethylene-2-methyl-3,4,5,6,7,9-hexahydro-2H-indazoles give mono- and polyaddition products. The structures of compounds obtained were established using UV, IR, 1 H and 1 3 C NMR
2-Acetyl-3-aryl-7-arylmethylene-3,4,5,6,7,9-hexahydro-2H-吲唑与 4-phenyl-3H-1,2,4-triazole-3 发生烯反应,5(4H)-二酮得到相应的单烯加合物。在类似条件下。3-aryl-7-arymethylene-2-methyl-3,4,5,6,7,9-hexahydro-2H-吲唑产生单加成和加聚产物。使用UV、IR、1 H和1 3 C NMR光谱和X射线衍射分析确定所得化合物的结构。