SYNTHESIS AND CONVERSIONS OF SUBSTITUTED 4,5-DIHYDRO-3H-SPIRO[BENZ-2-AZEPINE- 3,1'-CYCLOHEXANES]
Keywords:
benz-2-azepines, cyclic imines, phase-transfer catalysis, oxidation, cycloadditionAbstract
On oxidizing substituted 1,2,4,5-tetrahydro-3H-spiro[benz-2-azepine-3,1'-cyclohexanes] with potassium permanganate under phase-transfer catalysis conditions the corresponding 4,5-dihydro derivatives are formed in quantitative yield. By the action of allyl- and benzylmagnesium halides 5‑methyl-4,5-dihydro-3H-spiro[benz-2-azepine-3,1'-cyclohexane] is converted into 5-methyl-1,2,4,5-tetrahydro-1-allyl(benzyl)-3H-spiro[benz-2-azepine-3,1'-cyclohexane], and by reaction with phenoxyketene and dichlorocarbene into the corresponding 2-oxoazetidino[4,1-a]- and 1,1‑dichloroaziridino[3,1-a]benz-2-azepines.
How to Cite
Varlamov, A. V.; Zubkov, F. I.; Lazareva, E. V.; Chernyshev, A. I.; Grudinin, D. G. Chem. Heterocycl. Compd. 2001, 37, 1251. [Khim. Geterotsikl. Soedin. 2001, 1368.]
For this article in the English edition, see DOI https://doi.org/10.1023/A:1013805812281