New Facile Preparation of Dihydro Spiro-1,5-benzodiazepines
摘要:
2,3-Cycloalkano-3,4-dihydro(5H)-7-benzoyl-1,5-benzodiazepine-4-spirocycloalkanes have been prepared from 4-benzoyl-o-phenylenediamine and cycloalkanones in presence of acetic acid. Only in the case of cyclohexanones, dihydrospiro benzimidazoles are formed as coproducts which are absent in others.
New Facile Preparation of Dihydro Spiro-1,5-benzodiazepines
作者:P. Shanthan Rao、R. V. Venkataratnam
DOI:10.1080/00397919108021581
日期:1991.9
2,3-Cycloalkano-3,4-dihydro(5H)-7-benzoyl-1,5-benzodiazepine-4-spirocycloalkanes have been prepared from 4-benzoyl-o-phenylenediamine and cycloalkanones in presence of acetic acid. Only in the case of cyclohexanones, dihydrospiro benzimidazoles are formed as coproducts which are absent in others.