Stephen B Nelson

US Patent:

40815366, Mar 28, 1978

Filed:

Feb 4, 1977

Appl. No.:

5/765807

Inventors:

Stephen J. Nelson - Kalamazoo MI

Assignee:

The Upjohn Company - Kalamazoo MI

International Classification:

A01N 936
C07F 924

US Classification:

424211

Abstract:

Some new phosphinic acid derivatives of aminothio methylcarbamates have been synthesized and tested as pesticides. The new compounds are active against insects, mites, and nematodes. The N-[(phosphinyl)amino]thio- and N-[(phosphinothioyl)amino]thio- methylcarbamates are readily prepared by the general procedure of reacting a phosphinic acid amide with sulfur dichloride so as to obtain the corresponding N-(chlorothio)phosphinic acid amide which reactant will react with a methylcarbamate so as to produce the corresponding object compounds, the N-[phosphinyl)amino]thio- and N-[(phosphinothioyl)-amino]thio- methylcarbamates of this invention. Various formulations for pesticidal use are described along with appropriate rates of application.

US Patent:

48207586, Apr 11, 1989

Filed:

May 6, 1987

Appl. No.:

7/047364

Inventors:

Stephen J. Nelson - Climax MI

Assignee:

The Upjohn Company - Kalamazoo MI

International Classification:

C07D31100

US Classification:

549214

Abstract:

This invention pertains to a new method for killing and controlling worms (Helminths), new formulations for killing and controlling worms in animals, new chemical compounds, and a new synthesis of northern hemisphere intermediates for the synthesis of milbemycin and avermectin macrolides.

US Patent:

42972850, Oct 27, 1981

Filed:

Jul 31, 1980

Appl. No.:

6/174049

Inventors:

Stephen J. Nelson - Kalamazoo MI

Assignee:

The Upjohn Company - Kalamazoo MI

International Classification:

C07D30786

US Classification:

26034673

Abstract:

New phosphinic acid derivatives of aminothio methylcarbamates. The new compounds are active against insects, mites and nematodes.

US Patent:

43573479, Nov 2, 1982

Filed:

Dec 4, 1981

Appl. No.:

6/326895

Inventors:

Stephen J. Nelson - Kalamazoo MI

Assignee:

The Upjohn Company - Kalamazoo MI

International Classification:

A01N 3728
A01N 3734
C07C11900
C07C12178

US Classification:

424298

Abstract:

Phenylcarbamoylbenzimidates of the formula ##STR1## wherein X. sub. 1 is selected from the group consisting of methyl, trifluoromethyl, chlorine, fluorine and bromine; X. sub. 2 is selected from the group consisting of hydrogen, methyl, trifluoromethyl, chlorine, fluorine and bromine; R is alkyl of from 1 to 5 carbon atoms; X. sub. 3 and X. sub. 4 can be the same or different and are selected from the group consisting of hydrogen, chlorine and bromine; X. sub. 5 is selected from the group consisting of hydrogen, chlorine, bromine and trifluoromethyl; and X. sub. 6 is selected from the group consisting of cyano and nitro; with the proviso that when X. sub. 1 and X. sub. 2 are chlorine or when X. sub. 1 is fluorine and X. sub. 2 is hydrogen then R, X. sub. 3, X. sub. 4, X. sub. 5 and X. sub.

US Patent:

43082173, Dec 29, 1981

Filed:

May 20, 1980

Appl. No.:

6/151558

Inventors:

Stephen J. Nelson - Galesburg MI
Clifford E. Sacks - Portage MI

Assignee:

The Upjohn Company - Kalamazoo MI

International Classification:

C07F 924

US Classification:

260927R

Abstract:

Selected disulfides of various amides of phosphoric acids are claimed. They are useful to make corresponding sulfenyl chlorides or bromides in novel processes for preparing phosphorus derivatives of aminothiomethylcarbamates useful as pesticides.

US Patent:

57769362, Jul 7, 1998

Filed:

May 19, 1994

Appl. No.:

8/256111

Inventors:

Byung H. Lee - Kalamazoo MI
Stephen J. Nelson - Climax MI

Assignee:

Pharmacia & Upjohn Company - Kalamazoo MI

International Classification:

C07D49122
A01N 4390
C12P 1718
A61K 31495

US Classification:

514250

Abstract:

There are disclosed 18-thiomarcfortine derivatives of the natural products marcfortine A, B and C, C-18 thioparaherquamide and derivatives thereof, novel N-1 marcfortines A, B, and C and derivatives thereof, novel N-1 paraherquamide and derivatives thereof usefull in the treatment and prevention of helninth and arthropod infections of animals and plants. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Examiner Robert T. Bond whose telephone number is (703)308-4711. The examiner can normally be reached on Monday through Friday from 8:00 AM to 4:30 PM.

US Patent:

44735804, Sep 25, 1984

Filed:

Oct 25, 1982

Appl. No.:

6/436245

Inventors:

Fred E. Dutton - Kalamazoo MI
Stephen J. Nelson - Kalamazoo MI

Assignee:

The Upjohn Company - Kalamazoo MI

International Classification:

C07D30786
A01N 4724

US Classification:

424285

Abstract:

This invention pertains to some new organic compounds, to a process for preparing them, and to formulations of them suitable for pesticidal use. The invention is more particularly directed to imidic acid derivatives of N-thio(methyl)carbamates.

US Patent:

44316674, Feb 14, 1984

Filed:

Dec 4, 1981

Appl. No.:

6/326896

Inventors:

Stephen J. Nelson - Kalamazoo MI

Assignee:

The Upjohn Company - Kalamazoo MI

International Classification:

A01N 4742
C07C11920

US Classification:

424298

Abstract:

Phenylcarbamoylbenzimidates of the formula ##STR1## wherein X. sub. 1 and X. sub. 2 are the same or different and are selected from the group consisting of hydrogen, fluorine, chlorine, bromine, methyl, methoxy and trifluoromethyl; R is alkyl of from 1 to 5 carbon atoms; Y is selected from oxygen or sulfur; and R. sub. 1 is selected from a halo(C. sub. 1 -C. sub. 3)alkyl. These compounds are useful for controlling susceptible insect and arachnoid pests.