Theoretical study of N-(o-aminophenyl amic) acid cyclodehydration to 1,2-benzoilenebenzimidazole as a model reaction of ladder polypyrrones synthesis:: thermodynamic and thermochemical data
JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM
|
1999年
/
463卷
/
03期
关键词:
polyimidazopyrrolones;
thermodynamic simulation;
model reaction;
D O I:
暂无
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
The mechanism of polyimidazopyrrolones formation was studied via thermodynamic simulation of N-(o-aminophenyl)amic acid cyclodehydration to 1,2-benzoylenebezimidazole. It was found that 2-(o-carboxyphenyl)benzimidazole and N-(o-aminophenyl)phthalimide were the most thermodynamically favorable intermediates of this process. The thermodynamic possibility of 1,2-benzoylenebezimidazole formation from N-(o-acetamidophenyl)phthalimide and N-(o-trifluoroacetamidoghenyl)isophthalimide was also evaluated using the same method. All thermodynamic values were obtained from semiempirical quantum mechanics calculations. (C) 1999 Elsevier Science B.V. All rights reserved.