作者:Russell J. Molyneux、Rosalind Y. Wong
DOI:10.1016/0040-4020(77)80378-5
日期:1977.1
On treatment with diphenyldichloromethane or anisal chloride in the presence of acetone and aqueous sodium hydroxide, pyridine undergoes condensation and ring cleavage to yield the enamine Schiff bases 1,1-diphenyl-2-azadeca-1,3Z,5Z,7E-tetraen-9-one (1) and 1-(4-methoxyphenyl)-2-azadeca-1E,3Z,5Z,7E-tetraen-9-one (7). The reaction proceeds through attack of acetonyl carbanion on the initially formed
在丙酮和氢氧化钠水溶液存在下用二苯基二氯甲烷或苯甲酰氯处理时,吡啶进行缩合和开环裂解,生成烯胺席夫碱1,1-二苯基-2-氮杂多胺-1,3Z,5Z,7E-丁烯-9 -1(1)和1-(4-甲氧基苯基)-2-azadeca-1E,3Z,5Z,7E-tetraen-9-1(7)。反应通过丙酮基碳负离子对最初形成的双吡啶盐的攻击而进行,然后进行环断裂并消除一当量的吡啶。X射线晶体学证实了2-氮杂环戊烯(1)的结构和立体化学。