Process for producing...

Details Process for producing... Process for producing...

2011-01-04

2011-01-04

Chu, Yong (Department: 1626)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

active

07863460

ABSTRACT:
In a process for producing 1-substituted-3-fluoroalkyl-pyrazole-4-carboxylate (3) by a reaction of 2-alkoxymethylenefluoroacylacetate (1) and hydrazine (2), the reaction is conducted in the presence of a base and water, to produce 1-substituted-3-fluoroalkylpyrazole-4-carboxylate (3) with high selectivity and yield. This novel process enables to produce 1-substituted-3-fluoroalkylpyrazole-4-carboxylate (3), which is useful as an intermediate for pharmaceuticals and agrochemicals, with high selectivity and yield by simple and safe operations.

REFERENCES:
patent: 8-269014 (1996-10-01), None
patent: 10-175957 (1998-06-01), None
patent: 2001-58982 (2001-03-01), None
patent: WO 2004/060877 (2004-07-01), None
patent: WO 2004073594 (2004-09-01), None
patent: WO 2005003077 (2005-01-01), None
patent: WO 2005/123690 (2005-12-01), None

Affiliated with

Also associated with

Rating

Process for producing... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for producing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2685867