Wilhelmus J Wiegers

45240213, Jun 18, 1985

Jun 5, 1984

6/617585

Wilhelmus J. Wiegers - Red Bank NJ
Mark A. Sprecker - Sea Bright NJ

International Flavors & Fragrances Inc. - New York NY

A61K 746
C11B 900

252522R

Described is a method for producing the compounds described according to the structure: ##STR1## wherein R represents ethyl or methyl as well as optical isomers thereof having the structures: ##STR2## wherein R represents methyl or ethyl, as well as uses thereof in augmenting or enhancing the aroma of perfume compositions, colognes and perfumed articles such as perfumed polymers and solid or liquid anionic, cationic, nonionic or zwitterionic detergents, fabric softener compositions and fabric softener articles. Also described are processes and compositions for use in perfume aroma augmenting, enhancing, modifying and altering compositions and as perfume, cologne and perfumed article aroma imparting compositions of mixtures of the compounds defined according to the structure: ##STR3## wherein R represents methyl or ethyl taken further together with the alcohol having the structure: ##STR4## with one or more butanoyl cyclohexane derivatives and/or 3-methyl-1-phenyl-pentanol-5. The process for preparing the compounds having the structure: ##STR5## wherein R represents methyl or ethyl involves a two-step reaction wherein the compound having the structure ##STR6## is hydrogenated in the presence of acid to form the alcohol having the structure ##STR7## and the resulting alcohol is then esterified.

42502004, Feb 10, 1981

Aug 3, 1979

6/063374

Wilhelmus J. Wiegers - Red Bank NJ
Mark A. Sprecker - Sea Bright NJ
Hugh Watkins - Lincroft NJ
Manfred H. Vock - Locust NJ
Frederick L. Schmitt - Holmdel NJ

International Flavors & Fragrances Inc. - New York NY

A23L 1226
A23L 1235

426536

Processes and compositions are described for the use in foodstuff flavor and aroma and perfume and perfumed article aroma augmenting, modifying, altering, and enhancing compositions and as foodstuff, chewing gum, toothpaste, medicinal product, perfume and perfumed article aroma imparting materials of indane alkanols and tricyclic isochromans defined according to the generic structure: ##STR1## wherein R. sub. 1 is hydrogen or methyl; R. sub. 2, R. sub. 3, R. sub. 4 and R. sub. 5 represent hydrogen, methyl or isopropyl; the dashed line represents a carbon-carbon single bond or no bond; X represents --CH. sub. 2 --, CH. sub. 3 or hydrogen; with the proviso (i) that R. sub. 2 and R. sub. 3 represent methyl when R. sub. 4 is hydrogen and R. sub.

43159516, Feb 16, 1982

Dec 4, 1980

6/212886

Wilhelmus J. Wiegers - Red Bank NJ
Mark A. Sprecker - Sea Bright NJ
Hugh Watkins - Lincroft NJ
Manfred H. Vock - Locust NJ
Frederick L. Schmitt - Holmdel NJ

International Flavors & Fragrances Inc. - New York NY

A23L 1226

426536

Processes and compositions are described for the use in foodstuff flavor and aroma and perfume and perfumed article aroma augmenting, modifying, altering and enhancing compositions and as foodstuff, chewing gum, toothpaste, medicinal product, perfume and perfumed article aroma imparting materials of certain indane alkanols and tricyclic isochromans defined according to the generic structure: ##STR1## wherein one of R. sub. 1, R. sub. 2, R. sub. 3 or R. sub. 4 is C. sub. 2 H. sub. 5 and the remaining R. sub. 1, R. sub. 2, R. sub. 3 and R. sub. 4 represents methyl; wherein X is --CH. sub. 2 -- or hydrogen and wherein the dashed line represents a carbon-carbon single bond or no bond with the proviso that when X is --CH. sub. 2 --, then the dashed line is a carbon-carbon single bond and when X is hydrogen, the dashed line represents no bond. Addition of said indane alkanols or said tricyclic isochromans or mixtures thereof is indicated to produce: A.

46666303, May 19, 1987

Apr 11, 1986

6/850583

Wilhelmus J. Wiegers - Red Bank NJ

International Flavors & Fragrances Inc. - New York NY

C11B 900
A61K 746

252522R

Described is a genus of norbornylbutadiene-acrolein adducts defined according to the structure: ##STR1## wherein one of X. sub. 1 or X. sub. 2 represents carboxaldehyde and the other of X. sub. 1 or X. sub. 2 represents hydrogen; wherein R. sub. 1 and R. sub. 2 taken together represent vinyl or ethylidene and R. sub. 3 represents hydrogen or R. sub. 2 and R. sub. 3 taken together completes a cyclopenteno moiety and R. sub. 1 represents hydrogen and uses thereof in augmenting or enhancing the aroma of consumable materials selected from the group consisting of perfume compositions, colognes and perfumed articles (e. g. , perfumed polymers, solid or liquid anionic, cationic, nonionic or zwitterionic detergents, fabric softener compositions, dryer-added fabric softener articles, hair preparations, hair sprays, bath preparations and the like). Also described is a process for preparing norbornylbutadiene-acrolein adducts comprising the step of reacting the compound defined according to the structure: ##STR2## with acrolein in the presence of a Lewis acid catalyst.

42658187, May 5, 1981

Aug 3, 1979

6/063518

Wilhelmus J. Wiegers - Red Bank NJ
Mark A. Sprecker - Sea Bright NJ
Hugh Watkins - Lincroft NJ
Manfred H. Vock - Locust NJ
Frederick L. Schmitt - Holmdel NJ

International Flavors & Fragrances Inc. - New York NY

C07D31178

2603452

Processes and compositions are described for the use in foodstuff flavor and aroma and perfume and perfumed article aroma augmenting, modifying, altering and enhancing compositions and as foodstuff, chewing gum, toothpaste, medicinal product, perfume and perfumed article aroma imparting materials of certain indane alklanols and tricyclic isochromans defined according to the generic structure: ##STR1## wherein one of R. sub. 1, R. sub. 2, R. sub. 3 or R. sub. 4 is C. sub. 2 H. sub. 5 and the remaining R. sub. 1, R. sub. 2, R. sub. 3 and R. sub. 4 represents methyl; wherein X is--CH. sub. 2 --or hydrogen and wherein the dashed line represents a carbon-carbon single bond or no bond with the proviso that when X is--CH. sub. 2 --, then the dashed line is a carbon-carbon single bond and when X is hydrogen, the dashed line represents no bond. Addition of said indane alkanols or said tricyclic isochromans or mixtures thereof is indicated to produce: A.

45499837, Oct 29, 1985

Mar 14, 1984

6/589472

Wilhelmus J. Wiegers - Red Bank NJ
Mark A. Sprecker - Sea Bright NJ

International Flavors & Fragrances Inc. - New York NY

C11B 900

252522R

Described is a method for producing the substantially pure compound defined according to the structure: ##STR1## and uses thereof in augmenting or enhancing the aroma of perfume compositions, colognes and perfumed articles such as perfumed polymers and solid or liquid anionic, cationic, nonionic or zwitterionic detergents, fabric softener compositions and fabric softener articles. Also described are processes and compositions for use in perfume aroma augmenting, enhancing, modifying and altering compositions and as perfume, cologne and perfumed article aroma imparting compositions of mixtures of the compound having the structure: ##STR2## taken further together with one or more butanolyl cyclohexane derivatives and/or 3-methyl-1-phenyl-pentanol-5. The process for preparing the compound having the structure: ##STR3## involves a one-step reaction wherein the compound having the structure: ##STR4## is hydrogenated in the presence of acid.

40149447, Mar 29, 1977

Mar 1, 1976

5/662818

John B. Hall - Rumson NJ
Wilhelmus Johannen Wiegers - Red Bank NJ

International Flavors & Fragrances Inc. - New York NY

C07C 3500

2606315

A process for the preparation of a mixture of compounds having a sandalwood aroma is disclosed, which process comprises: 1. Reacting catechol with camphene in the presence of a Friedel Crafts Catalyst to form a first alkylation product; and then 2. Treating said first alkylation product with hydrogen in the presence of a hydrogenation catalyst, thus forming, initially, the diol intermediate of our invention and then, on continuing the hydrogenation, the novel mixture of our invention And sandalwood perfume compositions, perfumed articles and colognes containing such mixtures.

49140833, Apr 3, 1990

Jul 14, 1989

7/380081

Wilhelmus J. Wiegers - Red Bank NJ
Anton Van Ouwerkerk - Livingston NJ

International Flavors & Fragrances Inc. - New York NY

A61K 746

512 12

Described are oxy-substituted-2-phenyl pyran derivatives defined according to the generic structure: ##STR1## wherein: (i) the dashed lines in the pyran ring each represents a carbon-carbon single bond; or one of the dashed lines is a carbon-carbon double bond and each of the other of the dashed lines in the pyran ring is a carbon-carbon single bond; (ii) wherein R. sub. 2 represents lower alkyl and R. sub. 1 is hydrogen; or (iii) R. sub. 1 and R. sub. 2 represented by the moiety: ##STR2## taken together represents methylene and uses thereof in augmenting or enhancing the aroma of perfume compositions, colognes and perfumed articles including but not limited to perfumed polymers, solid or liquid anionic, cationic, nonionic or zwitterionic detergents, fabric softener compositions, fabric softener articles, hair preparations and cosmetic powders.