Polymorphs of N-(2-methoxybenzoyl)-4-[(methylaminocarbonyl)amino] benzenesulfonamide

Patent metadata

Field	Value
Publication number	US-9284269-B2
Application number	US-201314376462-A
Country	US
Kind code	B2
Filing date	Feb 8, 2013
Priority date	Feb 9, 2012
Publication date	Mar 15, 2016
Grant date	Mar 15, 2016

Abstract

The present invention relates to solid forms of herbicide safeners, to processes for their preparation, compositions comprising the solid forms and methods of their use as safeners.

First claim

The invention claimed is:

1. A crystalline polymorph of the compound of formula I:

wherein the polymorph is characterised by a powder X-ray diffraction pattern expressed in terms of 2θ angles, wherein the powder X-ray diffraction pattern comprises:
(a) at least one 2θ angle value at 9.0±0.2; and
(b) one 2θ angle value at 21.7±0.2; and
(c) at least three 2θ angle values selected from the group comprising 7.7±0.2, 11.9±0.2, 13.4±0.2, 15.0±0.2, 15.6±0.2, 16.1±0.2 and 18.0±0.2.

2. The crystalline polymorph of claim 1 which has a melting point of 216° C.±5° C.

3. The crystalline polymorph of claim 1 which has the following lattice parameters: a=19.38(5), b=7.34(5), c=22.95(5), α=90.00, β=90.00, γ=90.00 and volume=3264.8(5) Å 3 .

4. An agricultural composition comprising a polymorph chosen from at least one of
a crystalline polymorph of the compound of formula I

which has the following lattice parameters: a=19.38(5), b=7.34(5), c=22.95(5), α=90.00, β=90.00, γ=90.00 and volume=3264.8(5) Å 3 ; and
a crystalline polymorph of the compound of formula I

wherein the polymorph is characterised by a powder X-ray diffraction pattern expressed in terms of 2θ angles, wherein the powder X-ray diffraction pattern comprises:
(a) at least one 2θ angle value at 9.0±0.2; and
(b) one 2θ angle value at 21.7±0.2; and
(c) at least three 2θ angle values selected from the group comprising 7.7±0.2, 11.9±0.2, 13.4±0.2, 15.0±0.2, 15.6±0.2, 16.1±0.2 and 18.0±0.2; and

at least one agriculturally acceptable carrier or diluent.

5. The composition of claim 4 , which further comprises at least one herbicide.

6. A method for protecting crops of useful plants from the harmful effects of a herbicide, which comprises applying to the locus of the useful plants a composition of claim 4 .

7. A method for combating weeds in crops of useful plants, which comprises treating the useful plants, seeds or cuttings thereof or the locus of the useful plants simultaneously or at separate times with a herbicide and a polymorph chosen from at least one of
a crystalline polymorph of the compound of formula I

which has the following lattice parameters: a=19.38(5), b=7.34(5), c=22.95(5), α=90.00, β=90.00, γ=90.00 and volume=3264.8(5) Å 3 ; and
a crystalline polymorph of the compound of formula I

wherein the polymorph is characterised by a powder X-ray diffraction pattern expressed in terms of 2θ angles, wherein the powder X-ray diffraction pattern comprises:
(a) at least one 2θ angle value at 9.0±0.2; and
(b) one 2θ angle value at 21.7±0.2; and
(c) at least three 2θ angle values selected from the group comprising 7.7±0.2, 11.9±0.2, 13.4±0.2, 15.0±0.2, 15.6±0.2, 16.1±0.2 and 18.0±0.2.

Assignees

• Syngenta Ltd
• Syngenta Limted

Inventors

• Jones Ian Kevin
• George Neil
• Hone John

Classifications

• A01N47/30

  Derivatives containing the group >N—CO—N aryl or >N—CS—N—aryl · CPC title

• C07B2200/13

  Crystalline forms, e.g. polymorphs · CPC title

• A01N25/32

  Ingredients for reducing the noxious effect of the active substances to organisms other than pests, e.g. toxicity reducing compositions, self-destructing compositions · CPC title

• C07C311/46 Primary

  Y being a hydrogen or a carbon atom · CPC title

• C07C303/44

  Separation; Purification · CPC title