New facile preparation of dihydro spiro-1,5-benzodiazepines

Article abstract of DOI:10.1080/00397919108021581

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.

Full text of DOI:10.1080/00397919108021581

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Synthetic Communications:
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Synthetic Organic Chemistry
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New Facile Preparation
of Dihydro Spiro-1,5-
benzodiazepines
P. Shanthan Rao a & R. V. Venkataratnam a
a Indian Institute of Chemical Technology ,
Hyderabad, 500 007, India
Published online: 24 Sep 2006.
To cite this article: P. Shanthan Rao & R. V. Venkataratnam (1991) New Facile
Preparation of Dihydro Spiro-1,5-benzodiazepines, Synthetic Communications: An
International Journal for Rapid Communication of Synthetic Organic Chemistry,
21:17, 1811-1817, DOI: 10.1080/00397919108021581
To link to this article: http://dx.doi.org/10.1080/00397919108021581
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