REACTION OF 3-BENZOYL-1-METHYL-4-PHENYL-γ-PIPERIDOL WITH ARYLAMINES AND ARYLHYDRAZINES. SYNTHESIS OF 3-ARYLAMINO-1-OXO-1-PHENYLPROPANES AND 1,3-DIARYLPYRAZOLES AND THEIR FRAGMENTATION UNDER ELECTRON IMPACT
DOI:
https://doi.org/10.1007/7549Keywords:
3-arylamino-1-oxo-1-phenylpropanes, arylamines, arylhydrazines, 3-benzoyl-4-hydroxy-1-methyl-4-phenylpiperidine, 1, 3-diarylpyrazoles, mass spectraAbstract
Upon heating in the presence of arylamines 3-benzoyl-4-hydroxy-1-methyl-4-phenylpiperidine decyclizes via a retroaldol type reaction with subsequent transamination of the intermediate Mannich base to give 3-arylamino-1-oxo-1-phenylpropanes. In the case of the use of arylhydrazines this γ-piperidol recyclizes to give 1,3-diarylpyrazoles and their 4,5-dihydro derivatives. The mass spectroscopic behavior of a series of 3-arylamino-substituted 1-phenylpropanones has been studied.How to Cite
Volkov, S. V.; Kutyakov, S. V.; Levov, A. N.; Polyakova, E. I.; Tuan Anh, L; Soldatova, S. A.; Terentiev, P. B.; Soldatenkov, A. T. Chem. Heterocycl. Compd. 2007, 43, 445. [Khim. Geterotsikl. Soedin. 2007, 544.]
For this article in the English edition see DOI 10.1007/s10593-007-0064-3