Preparation of N-heterocycles

Details Preparation of N-heterocycles Preparation of N-heterocycles

1988-06-17

1990-05-29

Lee, Mary C.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548400, 546348, C07D20706, C07D21114

Patent

active

049297333

ABSTRACT:
N-heterocycles of the general formulae (I) and (II) ##STR1## where R.sup.1 and R.sup.4 to R.sup.9 are each hydrogen, alkyl, aryl, aralkyl, alkylaryl or cycloalkyl and R.sup.2 and R.sup.3 are each an alkyl, alkylaryl, substituted alkyl or cycloalkyl group, are prepared by a process in which an olefin of the formula (III) or (IV) ##STR2## where R.sup.2 to R.sup.9 have the above meanings, is reacted with NH.sub.3 or with a primary amine of the formula H.sub.2 NR.sup.1, where R.sup.1 has the above meanings, in the presence of a zeolite as a catalyst.

REFERENCES:
patent: 3334103 (1967-08-01), Feldman et al.
patent: 3502692 (1970-03-01), Feldman et al.
patent: 4166814 (1979-09-01), Karrer
Robertson et al., Hypotensives V 2,2,6,6-Tetramethylpiperidines and Related Compounds, J. Med. Chem. 6(1963), 4, pp. 381-384.
C. A., vol. 95, 219971.

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