Process for preparing 1,3-dimethy-4,5-diaminouracil

Details Process for preparing 1,3-dimethy-4,5-diaminouracil Process for preparing 1,3-dimethy-4,5-diaminouracil

1994-04-07

1996-04-23

Tsang, Cecilia

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

Organic compounds

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

C07D23902

Patent

active

055104843

ABSTRACT:
The present invention relates to an improved process for preparing 1,3-dimethyl-4,5-diaminouracil by catalytic reduction of 1,3-dimethyl-4-amino-5-nitrosouracil in the presence of a palladium/charcoal catalyst.

REFERENCES:
patent: 2646432 (1953-07-01), Homeyer
patent: 3929788 (1975-12-01), Miller
patent: 3946012 (1976-03-01), Takino et al.
patent: 4120947 (1978-10-01), Diamond
patent: 4546182 (1985-10-01), Kjellin et al.
patent: 5321029 (1994-06-01), Maschler et al.
N. A. Frolova et al. Khim-Farm Zh. 22(1) (1988) 67.
Chemical Abstracts, vol. 109, No. 9, 1988--"Catalytic Reduction of 1,3--Dimethyl--4--Amino--5 Nitrosouracil: Process Design", Abstract #733924.

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