Certain carbamate ester derivatives forming salts with pyridiniu

Details Certain carbamate ester derivatives forming salts with pyridiniu Certain carbamate ester derivatives forming salts with pyridiniu

1986-04-28

1987-09-15

Rotman, Alan L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546347, 546268, 540355, C07F 702, C07D40502, C07D21302

Patent

active

046940839

ABSTRACT:
Disclosed herein is a process for preparing a compound having the formula ##STR1## which comprises sulfonating a compound having the formula ##STR2## with a complex having the formula ##STR3## and cyclizing the resulting compound having the formula ##STR4## by treatment with a base.

REFERENCES:
patent: 4337197 (1982-06-01), Gordon et al.
patent: 4533660 (1985-08-01), Gordon et al.
J. Org. Chem., vol. 44, p. 3967 (1979).
J. Amer. Chem. Soc., vol. 102, p. 7026 (1980).
J. Org. Chem., vol. 46, p. 2809 (1981).
J. Org. Chem., vol. 47, p. 5160 (1982).
Heterocycles, vol. 21, p. 191 (1984).

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