Process for manufacturing heterocyclic compounds

Details Process for manufacturing heterocyclic compounds Process for manufacturing heterocyclic compounds

1982-09-29

1987-04-14

Siegel, Alan

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D33336

Patent

active

046580409

ABSTRACT:
A process for the manufacture of the heterocyclic compounds of the formula: ##STR1## wherein R is hydrogen, lower alkyl or phenyl, which comprises simultaneously decarboxylating and dinitrating a compound of the formula: ##STR2## wherein R has the meaning stated above, and finally hydrolyzing off the acyl group.

REFERENCES:
Hartough, Thiophene and Its Deriv., (1952) pp. 230, 231.
Rinkes Researches on Thiophen Deriv., (1932) pp. 1134-1142.
Steinkopf, J. Liebigs Ann. D. Chem., (1914) pp. 17-44.

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