摘要
报道了苯偶酰及其衍生物、对二甲氨基苯偶姻、邻苯二甲酰亚胺与1-苯基-3-甲基-5-吡唑啉酮的固相热反应研究;这个热反应以较高的选择性生成1:1缩合产物的一种异构体,通过IR、1HNMR、MS和元素分析确定了新产物的结构,并通过X射线衍射分析确定了其中一个产物的构型.
The solid state reactions of benzil,p-dimethylaminobenzil,4,4′-dibromobenzil,p-dimethylaminobenzoin and o-phthalimide with 1-phenyl-3-methyl-5-pyrazolone were re-ported. This thermal reaction was carried out at 120℃ for 0.5hand gave one of the 1:1condensation isomers in a higher selectivity. The structures of seven new products wereidentified by IR,1HNMR, MS and elementary analysis, and the configuration of the prod-uct 1-phenyl-3-methyl-4-benzoylphenylmethylene-5-pyrazolone 1 was determined by X-raydiffraction analysis. In the molecule of compound 1, there is four plans rather than coplanar.Benzoyl group and CO group of five membered ring are in cis-positions, the interaction ofoxygen atoms leads to noncoplanar.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1996年第1期81-84,共4页
Chemical Journal of Chinese Universities
基金
国家自然科学基金
关键词
固相反应
苯基
甲基
吡唑
啉酮
二羰基化合物
Solid state reaction,1-phenyl-3-methyl-5-pyrazolone, Dicarbonyl compound