Preparation and reaction of isomeric formyl-2,1-benzisoxazoles
作者:Brian T. Phillips、George D. Hartman
DOI:10.1002/jhet.5570230347
日期:1986.5
The novel 4-formyl-2,1-benzisoxazole and 7-formyl-2,1-benzisoxazole were prepared for conversion via the Hantzsch synthesis to 1,4-dihydropyridines. The 4-formyl derivative underwent efficient cyclization to the dihydropyridine while analogous reaction of the 7-formyl compound has proven problematic.