Process for preparing 4-trifluoromethylsulfinylpyrazole derivative
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 19, 2005
Grant Date -
Feb 19, 2004
app pub date -
Jul 3, 2003
filing date -
Oct 22, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A process for the preparation of a compound of formula (I) ##STR1## comprising oxidizing a compound of formula (II) ##STR2## with trifluoroperacetic acid in the presence of a corrosion inhibiting compound such as boric acid. Also, a process for preparing a compound of formula (II) by adding sulfur dioxide to a mixture of the corresponding disulfide, a formate salt, trifluoromethyl bromide and a polar solvent; and a process for preparing the disulfide comprising adding S.sub.2 Cl.sub.2 to a solution, in an organic solvent, of the corresponding 4-unsubstituted pyrazole.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully