Process for the production of 2-alkyl- or cycloalkyl-4-methyl-6-

Details Process for the production of 2-alkyl- or cycloalkyl-4-methyl-6- Process for the production of 2-alkyl- or cycloalkyl-4-methyl-6-

1978-08-08

1979-08-07

Daus, Donald G.

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

Organic compounds

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

544 97, C07D23936

Patent

active

041638484

ABSTRACT:
Production of 2-alkyl- or cycloalkyl-4-methyl-6-hydroxypyrimidines by first neutralizing an alkyl imidate ester hydrochloride with a base in the presence of a water-immiscible solvent for the alkyl imidate ester to be freed thereby; condensing the alkyl imidate ester with diketene to form an oxazinone intermediate, which is then reacted in organic solution with gaseous ammonia and recovering the desired substituted 6-hydroxypyrimidine.

REFERENCES:
patent: 3997536 (1976-12-01), Boller et al.
patent: 4012506 (1977-03-01), Balke et al.
patent: 4014879 (1977-03-01), Balke et al.
patent: 4018771 (1977-04-01), Gupton et al.
patent: 4052396 (1977-10-01), Pociask
patent: 4052397 (1977-10-01), Blackwell et al.

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