作者:Noboru Sugiyama、Makoto Yamamoto、Choji Kashima
DOI:10.1246/bcsj.42.1357
日期:1969.5
benzoylacetone (II), acetylacetone (III), or 6-phenyl-2,4-hexanedione (IV) with benzylidenaniline (I), in the presence of three moles of potassium amide in liquid ammonia, was found to give a dihydropyridone or an aminodiketone. Thus, the condensation of II with I afforded aminodiketone, 1-anilino-1,5-diphenyl-3,5-pentanedione (V), which cyclized to 2,3-dihydro-1,2,6-triphenyl-4-pyridone (IX) upon being treated
β-二酮、苯甲酰丙酮 (II)、乙酰丙酮 (III) 或 6-苯基-2,4-己二酮 (IV) 与苄基苯胺 (I) 的缩合,在三摩尔氨化钾的液氨存在下,是发现产生二氢吡啶酮或氨基二酮。因此,II 与 I 的缩合得到氨基二酮、1-苯胺基-1,5-二苯基-3,5-戊二酮 (V),其环化为 2,3-二氢-1,2,6-三苯基-4-吡啶酮(IX) 用硫酸处理后。III与I的缩合得到2,3-二氢-1,2-二苯基-6-甲基-4-吡啶酮(X)而无需用硫酸进行任何处理。IV 和 I 得到 2,3-dihydro-1,2-diphenyl-6-phenethyl-4-pyridone (XI) 作为主要产物,3-benzyl-2,3-dihydro-1,2-diphenyl-6-甲基-4-吡啶酮(XII)作为副产物。