Process for the separation of phenyluracil compounds

Details Process for the separation of phenyluracil compounds Process for the separation of phenyluracil compounds

Filed on

1998-08-24

Date issued

1999-05-04

Examiner

Ford, John M.

Patent Class

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

SubClass

Organic compounds

SubSubClass

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

Other Related Categories

C07D23954

Type

Patent

Status

active

Patent number

059004835

Description

ABSTRACT:
A process for the separation of phenyluracil compounds is provided.
The process according to the present invention comprises treating with a weakly-basic substance a mixture of a halogenophenyluracil compound (I) and a cyanophenyluracil compound (II): ##STR1## wherein X is a hydrogen or fluorine atom, Y is a chlorine or bromine atom, and R is an alkyl group containing 1 to 3 carbon atoms, to separate the compounds (I) and (II).

REFERENCES:
patent: 5391541 (1995-02-01), Konz
patent: 5486610 (1996-01-01), Strunk et al.

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