Title:
PROCESS FOR PREPARING BOSCALID
Document Type and Number:
WIPO Patent Application WO/2017/193619
Kind Code:
A1
Abstract:
A process for preparing the polymorph I of the anhydrate of 2-Chloro-N- (4'-chlorobiphenyl-2-yl) -nicotinamide (boscalid) of the formula ( I ): is provided, the process comprising the steps of: a) dissolving the polymorph II of the anhydrate of boscalid in a first solvent in an amount and at conditions allowing dissolution of the polymorph II of the anhydrate of boscalid; b) combining the resulting solution with water; c) isolating the solid from the solvent mixture; and d) drying the solid to obtain the polymorph I of the anhydrate of boscalid.
More Like This:
Inventors:
BRISTOW JAMES TIMOTHY (CN)
Application Number:
PCT/CN2017/070635
Publication Date:
November 16, 2017
Filing Date:
January 09, 2017
Export Citation:
Assignee:
JIANGSU ROTAM CHEMISTRY CO LTD (CN)
International Classes:
C07D213/82
Foreign References:
| CN1558901A | 2004-12-29 | |||
| CN1751026A | 2006-03-22 | |||
| CN103980192A | 2014-08-13 | |||
| EP0545099A2 | 1993-06-09 | |||
| US7241896B2 | 2007-07-10 |
Other References:
See also references of EP 3455210A4
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
Download PDF: