Sandeep C Gupta

US Patent:

6355799, Mar 12, 2002

Filed:

Apr 27, 2000

Appl. No.:

09/530373

Inventors:

Sandeep Gupta - Concord OH
Shao-Yong Wu - Fremont CA
Masamitsu Tsukamoto - Mayfield Heights OH
David A. Pulman - Mentor OH

Assignee:

ISK Americas Incorporated - Concord OH

International Classification:

C07D23902

US Classification:

544309, 544311, 544312

Abstract:

Novel herbicidal and defoliant substituted aniline derived compounds represented by general structure (I) are described. W, X, Y, Z, and Q are as defined in the disclosure. Also described are the processes for the manufacture of these compounds and agriculturally suitable compositions containing these as active ingredients which are useful as herbicides for general or selective pre-emergent or post-emergent control of undesired plant species and defoliants at very low concentrations of these biologically active compounds.

US Patent:

6479435, Nov 12, 2002

Filed:

Feb 9, 2001

Appl. No.:

09/779674

Inventors:

David A. Pulman - Mentor OH
Shao-Yong Wu - Fremont CA
Sandeep Gupta - Concord OH
Hiroshi Shimoharada - Moriyama, JP
Masamitsu Tsukamoto - Mayfield Heights OH

Assignee:

ISK Americas Incorporated - Concord OH

International Classification:

C07D40312

US Classification:

504242, 544315, 544333

Abstract:

Diaryl ether compounds useful in the control of weeds are described. An exemplary compound is represented by the general formula (I): In this formula Q is represented by Q X and Y represent a hydrogen atom, halogen atom, cyano group, nitro group or (C )haloalkyl group; R is halogen; R and R represent a hydrogen atom, a (C )alkyl group or a (C )haloalkyl group. Methods of making the compounds are also described.

US Patent:

6545161, Apr 8, 2003

Filed:

Aug 16, 2001

Appl. No.:

09/930149

Inventors:

Sandeep Gupta - Concord OH
Shao-Yong Wu - Fremont CA
Masamitsu Tsukamoto - Mayfield Heights OH
David A. Pulman - Mentor OH

Assignee:

Isk Americas Incorporated - Concord OH

International Classification:

C07D24808

US Classification:

5482632, 5482644, 504273, 504287

Abstract:

Novel herbicidal and defoliant substituted aniline derived compounds represented by general structure (I) are described. W, X, Y, Z, and Q are as defined in the disclosure. Also described are the processes for the manufacture of these compounds and agriculturally suitable compositions containing these as active ingredients which are useful as herbicides for general or selective pre-emergent or post-emergent control of undesired plant species and defoliants at very low concentrations of these biologically active compounds.

US Patent:

6573218, Jun 3, 2003

Filed:

Jul 5, 2001

Appl. No.:

09/786816

Inventors:

Masamitsu Tsukamoto - Mayfield Heights OH
Sandeep Gupta - Concord OH
Shao-Yong Wu - Fremont CA
David A. Pulman - Mentor OH

Assignee:

Ishihara Sangyo Kaisha, Ltd. - Osaka

International Classification:

C07D23116

US Classification:

504221, 504225, 544 51, 544 52, 544105

Abstract:

A compound of the formula (Ia): or its salts, in which the variables are as described in the disclosure; herbicidal compositions of said compounds, herbicidal processes using said compounds, defoliant processes using said compounds, and processes for preparing said compounds.

US Patent:

6613718, Sep 2, 2003

Filed:

Dec 5, 2001

Appl. No.:

10/001816

Inventors:

Sandeep Gupta - Concord OH
Masamitsu Tsukamoto - Mayfield Heights OH
Mark Read - Willoughby OH

Assignee:

Ishihara Sangyo Kaisha, Ltd. - Osaka

International Classification:

C07D23934

US Classification:

504242, 504243, 544309, 544317, 544180, 544182, 544224, 5483601, 5483561

Abstract:

Substituted aryl ether derived compounds represented by the general structure (I) are described. X and Y are independent of each other and are represented by hydrogen, halogen, cyano, nitro, (C )alkyl, (C )haloalkyl, or (C )haloalkoxy; Z is oxygen or sulfur; Q is selected form Q1 to Q6; A is oxygen, sulfur, or imino; R is hydrogen, (C )alkyl, (C )haloalkyl, or amino and can be independent of each other in a single molecule; R and R are independent of each other and may be selected from the group consisting of hydrogen, halogen, cyano, nitro, (C )alkyl, (C )haloalkyl, (C )alkenyl, (C )haloalkenyl and amino which may be optionally substituted with (C )alkyl or (C )haloalkyl; Ar is substituted or unsubstituted carbocyclic or heterocyclic aromatic ring being at least a five or six membered ring. This ring can be fused with another substituted or unsubstituted five or six membered carbocyclic or heterocyclic ring. When Q is Q5, unsubstituted or substituted phenyl is excluded.

US Patent:

6617282, Sep 9, 2003

Filed:

Sep 26, 2001

Appl. No.:

09/962081

Inventors:

Mark Read - Willoughby OH
Masamitsu Tsukamoto - Mayfield Heights OH
Sandeep Gupta - Concord OH

Assignee:

Ishihara Sangyo Kaisha, Ltd. - Osaka

International Classification:

C07D23954

US Classification:

504243, 544296, 544310, 544312

Abstract:

A process for producing 3-phenyl-2,4(1H,3H)-pyrimidinediones having the general formula I and their salts which comprises reacting the isocyanates represented by the general formula (II) and the substituted hydrazono esters represented by the general formula (III) in the presence of a base. These compounds are useful as herbicides, defoliants and desiccants.

US Patent:

6770596, Aug 3, 2004

Filed:

Mar 18, 2002

Appl. No.:

09/980398

Inventors:

Sandeep Gupta - Concord OH
David A. Pulman - Mentor OH
Masamitsu Tsukamoto - Mayfield Heights OH
Takahiro Haga - Kusatsu, JP

Assignee:

Ishihara Sangyo Kaisha Ltd. - Osaka

International Classification:

C07D23922

US Classification:

504221, 504225, 544101, 544 586, 544 587

Abstract:

Novel fused tricyclic compounds represented by formula (I) are described. Q, Y, âLâXâ, A, Aâ, B, E, D, n and m are as defined in the disclosure. Also described are the processes for the manufacture of these compounds and agriculturally suitable compositions containing these as active ingredients which are useful as herbicides for general or selective pre-emergent or post-emergent control of undesired plant species.

US Patent:

6927193, Aug 9, 2005

Filed:

Mar 3, 2003

Appl. No.:

10/376621

Inventors:

Sandeep Gupta - Concord OH, US
Masamitsu Tsukamoto - Mayfield Heights OH, US
Mark Read - Willoughby OH, US

Assignee:

Ishihara Sangyo Kaisha, Ltd. - Osaka

International Classification:

C07D239/56
C07D239/58
C07D239/47
A01N043/54

US Classification:

504243, 544309, 544318, 544319, 544320

Abstract:

Substituted aryl ether derived compounds represented by the general structure (I) are described. X and Y are independent of each other and are represented by hydrogen, halogen, cyano, nitro, (C)alkyl, (C)haloalkyl, or (C)haloalkoxy; Z is oxygen or sulfur; Q is selected form Q1 to Q6; Also described are the processes for the manufacture of these compounds and agriculturally suitable compositions containing these as active ingredients which are useful as herbicides for general or selective pre-emergent or post-emergent control of undesired plant species and defoliants.