Method for producing 1-unsubstituted 3-aminopyrroles

Details Method for producing 1-unsubstituted 3-aminopyrroles Method for producing 1-unsubstituted 3-aminopyrroles

1993-08-11

1995-05-09

Shah, Mukund J.

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

Organic compounds

Chalcogen in the nitrogen containing substituent

544141, 544372, 546208, 546281, 548532, 548557, C07D20734

Patent

active

054140820

ABSTRACT:
A process for producing pharmacologically active 1-unsubstituted 3-aminopyrroles of the formula ##STR1## by ring transformation of a corresponding 1,2-thiazolium pyrrole in a single step, without producing harmful byproducts.

REFERENCES:
patent: 4198502 (1980-04-01), Tarzia et al.
Knoll et al, Russian Article (Khimia Geterociklich) (1985) No. 5, p. 628.
Bird & Cheeseman editors: Comprehensive Heterocyclic Chem., vol. 4, Part 3, Pergaon Press (1984).
S Rajappa et al., Nitroenamines, Part IV., Indian Jnal. Chem. vol. 16b, (Oct. 1977), p. 886.

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