Wendell Lee Roelofs

US Patent:

20060057101, Mar 16, 2006

Filed:

Jul 11, 2005

Appl. No.:

11/178833

Inventors:

Wendell Roelofs - Geneva NY, US
Coby Schal - Cary NC, US
Francis Webster - Syracuse NY, US
Satoshi Nojima - Raleigh NC, US

International Classification:

A01N 25/00
C07C 50/38

US Classification:

424084000, 552309000

Abstract:

A compound of the formula I where R represents unsubstituted or substituted, alkyl, cycloalkyl, alkenyl, alkynyl, or aryl, and X represents where Rand Rare each H or alkyl, is disclosed. Compounds of formula I are particularly useful as an attractant for cockroaches, namely, . Synthesis of the compounds, methods of controlling cockroach populations, and of disrupting cockroach mating are also disclosed.

US Patent:

52962202, Mar 22, 1994

Filed:

Dec 7, 1992

Appl. No.:

7/986054

Inventors:

Wendell L. Roelofs - Geneva NY
Coby Schal - Mercerville NJ
Francis X. Webster - Syracuse NY
Ralph E. Charlton - Manhattan KS
Aijun Zhang - Geneva NY

International Classification:

C07D30932
C07D30918
A01N 2500
A01N 2524

US Classification:

424 84

Abstract:

Compounds useful as cockroach attractants, the synthesis of the compounds, and methods of controlling cockroach populations with the compounds are disclosed. The compounds are pyrans having the formula: ##STR1## wherein: R. sup. 1 is a methyl, ethyl, propyl, or methoxy group and R. sup. 2 is a branched alkyl side chain having from 7 to 11 carbons. Preferably, R. sup. 2 is a 2,4-dimethyl-substituted alkyl group. Most preferably R. sup. 1 is methyl and R. sup. 2 is 2,4-dimethylheptanyl. The pyrans can be used as an attractant in cockroach traps comprising, in addition to a pyran according to Formula (I) above, a support and a cockroach restraint. Alternatively, the pyran of the present invention can be combined with a biocontrol agent or an insecticide to form a cockroach control composition.

US Patent:

55059511, Apr 9, 1996

Filed:

Feb 10, 1994

Appl. No.:

8/195348

Inventors:

Wendell L. Roelofs - Geneva NY
Coby Schal - Mercerville NJ
Francis X. Webster - Syracuse NY
Ralph E. Charlton - Manhattan KS
Aijun Zhang - Geneva NY

International Classification:

A01N 2524
A01N 2500

US Classification:

424407

Abstract:

Compounds useful as cockroach attractants, the synthesis of the compounds, and methods of controlling cockroach populations with the compounds are disclosed. The compounds are pyrans having the formula: ##STR1## wherein: R. sup. 1 is a methyl, ethyl, propyl, or methoxy group and R. sup. 2 is a branched alkyl side chain having from 7 to 11 carbons. Preferably, R. sup. 2 is a 2,4-dimethyl-substituted alkyl group. Most preferably R. sup. 1 is methyl and R. sup. 2 is 2,4-dimethylheptanyl. The pyrans can be used as an attractant in cockroach traps comprising, in addition to a pyran according to Formula (I) above, a support and a cockroach restraint. Alternatively, the pyran of the present invention can be combined with a biocontrol agent or an insecticide to form a cockroach control composition.

US Patent:

39520935, Apr 20, 1976

Filed:

Apr 4, 1975

Appl. No.:

5/565310

Inventors:

Wendell L. Roelofs - Geneva NY
Ada S. Hill - Geneva NY
Thomas C. Baker - Geneva NY
Ring T. Carde - Geneva NY

International Classification:

A01N 1714

US Classification:

424 84

Abstract:

Cis- 9-tetradecenal and cis-11-hexadecenal have been synthesized and found to be, in combination, sex attractants for males of the species Heliothis virescens (Tobacco Budworm Moth) and major economic pest. Methods of preparing said compounds and methods of utilizing said compounds as attracting agent are disclosed.

US Patent:

58769943, Mar 2, 1999

Filed:

Nov 16, 1995

Appl. No.:

8/558823

Inventors:

Douglas C. Knipple - Geneva NY
Wendell L. Roelofs - Geneva NY
Stuart J. Miller - Geneva NY

Assignee:

Cornell Research Foundation, Inc. - Ithaca NY

International Classification:

C12N 902

US Classification:

435189

Abstract:

The present invention is directed to isolated membrane-associated acyl-CoA desaturases expressed in the pheromone gland of an insect and, in particular, the. DELTA. 11 desaturase of Trichoplusia ni. The present invention further relates to an isolated DNA molecule encoding the T. ni. DELTA. 11 desaturase, expression vectors comprising the DNA molecule, and host cells comprising the expression vectors. Methods for isolating DNA sequences of homologous acyl-CoA desaturases expressed in the pheromone glands of insects are provided. The use of these acyl-CoA desaturases, DNA molecules, expression vectors, and host cells to produce an unsaturated fatty acyl-CoA product from a saturated or unsaturated fatty acyl-CoA reactant is also disclosed. The unsaturated fatty acyl-CoA products are useful as pheromones or as pheromone precursors as well as in the preparation of organic molecules, such as drugs.