The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 12, 1993
Filed:
Mar. 27, 1992
Anubhav P Narula, Hazlet, NJ (US);
John J De Virgilio, Freehold, NJ (US);
William L Schreiber, Jackson, NJ (US);
International Flavors & Fragrances Inc., New York, NY (US);
Abstract
Described is the use in imparting, augmenting or enhancing aromas to or in perfume compositions, colognes and perfumed articles by admixing therewith an aroma imparting, augmenting or enhancing quantity of 2,2-dimethyl-4-phenyl valeronitrile defined according to the structure: ##STR1## Also described herein is a process for preparing phenyl butyronitriles by reacting isobutyronitrile having the structure: ##STR2## with a styrene derivative defined according to the structure: ##STR3## according to the reaction: ##STR4## in the presence of a catalyst selected from the group consisting of sodium hydride and lithium diisopropyl amide having the structure: ##STR5## at a temperature in the range of from about 90.degree. C. up to about 130.degree. C. yielding more than about 65% by weight of product wherein R.sub.1 and R.sub.2 are the same or different and each represents hydrogen or methyl.