3-triazoles 6 (ethyl-2-benzyl-3-oxo-1-((1-aryl-1H-1,2,3-triazol-4-yl)methyl)-2,3-dihydro-1H-isoindole-1-carboxylates) was obtained. The reactions proceed in a regioselective manner affording exclusively racemic adducts 4 and 6. Compared to the uncatalyzed cycloaddition, the yields are significantly improved in the presence of CuI as catalyst, without alteration of the selectivity. The regio- and stereochemistry
CuI 或 Ag2CO3 催化的 [3 + 2] 炔丙基取代的二氢
异吲哚啉-1-one (3) 与芳基腈氧化物 1a – d(Ar = Ph、p-MeC6H4、p-MeOC6H4、p-ClC6H4)的环加成生成高产率的新型 3,5-二取代的乙基-2-苄基-3-氧代-1-((3-芳基
异恶唑-5基)甲基)-
2,3-二氢-1H-异吲哚-1-羧酸酯类型的
异恶唑4。与芳基
叠氮化物 2a-d (Ar = Ph, p-MeC6H4, p-OMeC6H4, p-ClC6H4),一系列 1,4-二取代的
1,2,3-三唑 6 (ethyl-2-benzyl-3-oxo获得-1-((1-芳基-
1H-1,2,3-三唑-4-基)甲基)-
2,3-二氢-1H-异吲哚-1-羧酸酯)。反应以区域选择性方式进行,仅提供外消旋加合物 4 和 6。与未催化的环加成相比,在 CuI 作为催化剂的情况下,产率显着提高,而选择性没有改变。