作者:Noritaka Abe
DOI:10.1246/bcsj.64.2393
日期:1991.8
2-Aminoazulene (1a) reacted with dimethyl acetylenedicarboxylate (DMAD) to give dimethyl 1,2-azulenedicarboxylate, tetramethyl 2,2′-(2-amino-1,3-azulenediyl)bis[fumarate], and dimethyl 2-(4-methoxycarbonyl-2-oxo-l,2-dihydroazuleno[2,1-b]pyridin-10-yl)fumarate. The reaction of ethyl 2-amino-1-azulenecarboxylate (1b) with DMAD gave dimethyl 2-(2-amino-3-ethoxycarbonyl-1-azulenyl)fumarate and 10-ethyl 4-methyl 2-oxo-1,2-dihydroazuleno[2,1-b]pyridine-4,10-dicarboxylate (8a). The treatment of 8a with phosphoryl chloride gave the 2-chloroazuleno[2,1-b]pyridine derivative. Reactions of 1a and 1b with methyl propiolate gave corresponding Michael adducts and the azuleno[2,1-b]pyridin-3(4H)-one derivatives. Reactions of 1a and 1b with dibenzoylacetylene gave 4-benzoyl-2-phenylazuleno[2,1-b]pyridine derivatives.
2-氨基甘菊环 (1a) 与双甲基乙炔二羧酸酯 (DMAD) 反应,生成双甲基1,2-甘菊环二羧酸酯、四甲基2,2′-(2-氨基-1,3-甘菊环二基)双[富马酸酯]以及双甲基2-(4-甲氧羰基-2-氧-1,2-二氢甘菊环[2,1-b]吡啶-10-基)富马酸酯。乙基2-氨基-1-甘菊环羧酸酯 (1b) 与DMAD反应,生成双甲基2-(2-氨基-3-乙氧羰基-1-甘菊环基)富马酸酯和10-乙基4-甲基2-氧-1,2-二氢甘菊环[2,1-b]吡啶-4,10-二羧酸酯 (8a)。用磷酰氯处理8a得到2-氯甘菊环[2,1-b]吡啶衍生物。1a和1b与甲基丙炔酸酯的反应生成相应的Michael加合物和甘菊环[2,1-b]吡啶-3(4H)-酮衍生物。1a和1b与二苯甲酰乙炔的反应生成4-苯甲酰基-2-苯基甘菊环[2,1-b]吡啶衍生物。