Process for the preparation of 4(3H)-quinazolinones

Details Process for the preparation of 4(3H)-quinazolinones Process for the preparation of 4(3H)-quinazolinones

1984-05-15

1987-02-17

Raymond, Richard L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

564245, 544250, 544284, 544290, 544289, C07D40304, C07D49104, C07D25704

Patent

active

046440658

ABSTRACT:
A new process for the preparation of 3-(1H-tetrazol-5-yl)-4(3H)-quinazolinones from anthranilic acid derivatives is described herein. Additional reactants used in the process are 4-aminotetrazole and a trialkoxymethane or the reaction can be carried out using the imidic ester obtained from these two compounds.

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