Method for the production of 2-isopropyl-4-methyl-6-hydroxypyrim

Details Method for the production of 2-isopropyl-4-methyl-6-hydroxypyrim Method for the production of 2-isopropyl-4-methyl-6-hydroxypyrim

1982-09-20

1985-01-29

Gerstl, Robert

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

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

C07D23936

Patent

active

044967284

ABSTRACT:
A process is described for the production of 2-isopropyl-4-methyl-6-hydroxypyrimidine (oxypyrimidine) by reacting isopropylamidine in an alkaline lower alkanol solvent system with an alkyl acetoacetate to close the ring and form the oxypyrimidine in a continuous flow multi-stage reactor (MSR) under controlled multi-stage conditions whereby the reactants contact each other in each of said stages under conditions which reduce the possibility of the formation of unwanted reaction products from said reactants in said solvent system.

REFERENCES:
patent: 4014879 (1977-03-01), Bulke
patent: 4308258 (1981-12-01), Okabe

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