Title:
NOVEL CRYSTALLINE FORMS OF FLUFENACET, METHODS FOR THEIR PREPARATION AND USE OF THE SAME
Document Type and Number:
WIPO Patent Application WO/2021/115494
Kind Code:
A1
Abstract:
A novel crystalline modification II of flufenacet is provided, characterized by an X-ray powder diffractogram (XRD), an infrared (IR) spectrum, a melting point and/or a differential scanning calorimetry (DSC) profile. There is also provided a method for preparing the crystalline modification II of flufenacet comprising: i) providing a solution of flufenacet in a solvent system comprising a one or more solvents; ii) precipitating the crystalline modification II of flufenacetfrom the solution; and iii) isolating the precipitated crystalline modification II of flufenacet. Compositions comprising the crystalline modification II of flufenacet and the use of the crystalline modification II in the control of unwanted plant growth are also provided.
More Like This:
Inventors:
BRISTOW JAMES (CN)
Application Number:
PCT/CN2021/072800
Publication Date:
June 17, 2021
Filing Date:
January 20, 2021
Export Citation:
Assignee:
JIANGSU ROTAM CHEMISTRY CO LTD (CN)
International Classes:
C07D285/13
Foreign References:
| CN105646397A | 2016-06-08 | |||
| CN103664824A | 2014-03-26 | |||
| US5852202A | 1998-12-22 | |||
| CN1134424C | 2004-01-14 | |||
| CN1142924C | 2004-03-24 | |||
| CN1224007A | 1999-07-28 |
Other References:
See also references of EP 4073049A4
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
Download PDF: