Carbamic acid derivatives and method for preparing same

Details Carbamic acid derivatives and method for preparing same Carbamic acid derivatives and method for preparing same

1986-08-28

1989-01-10

Ford, John M.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548378, C07D23110

Patent

active

047974940

ABSTRACT:
Carbamic acid derivatives having the following general formula: ##STR1## wherein R is an aromatic radical containing at least one benzene ring with at least one hydrogen atom substituted with a methyl, methylene or methine group; n=2 to 7.
A method for preparing carbamic acid derivatives which comprises reacting 3(5)-methylpyrazole with an isocyanate of the general formula: R(NCO).sub.n, wherein: R is an aromatic radical containing at least one benzene ring having at least one hydrogen atom substituted with a methyl, methylene or methine group; n=2 to 7; the reaction being conducted in a melt or a solution of an inert organic solvent.

REFERENCES:
patent: 3317463 (1967-05-01), Schonfeld et al.
patent: 4191833 (1980-03-01), Tucker
Morrison et al., Textbook "Organic Chemistry" 3rd Ed., Allyn and Bacon, Inc., Boston, MA 1978, p. 1044.

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