An isoxazole strategy for the synthesis of 4-oxo-1,4-dihydropyridine-3-carboxylates
作者:Timur O Zanakhov、Ekaterina E Galenko、Mikhail S Novikov、Alexander F Khlebnikov
DOI:10.3762/bjoc.18.74
日期:——
A method has been developed for the preparation of 2-alkyl-6-aryl-, 2-aryl-6-aryl and 2,6-diaryl-5-aryl/hetaryl-substituted methyl 4-oxo-1,4-dihydropyridine-3-carboxylates by Mo(CO)6-mediated ring expansion of methyl 2-(isoxazol-5-yl)-3-oxopropanoates. The high reactivity of 4-oxo-1,4-dihydropyridine-3-carboxylates synthesized provide easy access to 2,4,6-triaryl-substituted and 1,2,5,6-tetrasubstituted
开发了一种制备2-烷基-6-芳基-、2-芳基-6-芳基和2,6-二芳基-5-芳基/杂芳基取代甲基4-氧代-1,4-二氢吡啶-的方法通过 Mo(CO) 6介导的 2-(isoxazol-5-yl)-3-oxopropanoates 甲酯的扩环生成 3-羧酸盐。合成的 4-oxo-1,4-dihydropyridine-3-carboxylates 的高反应性提供了容易获得 2,4,6-triaryl 取代和 1,2,5,6-tetra取代的烟酸酯。