Process for preparing 4,4A,5,6-tetrahydro-7-methyl-2-(3H)-naphthalenone, intermediates used in said process and novel crystalline form of same

Described is a process for preparing 4,4A,5,6-tetrahydro-7-methyl-2-(3H)-naphthalenone having the structure: and intermediates useful in such process defined according to the structure: wherein one of R3 or R4 is hydrogen and the other of R3 or R4 is acetyl; and one of R1 or R2 is methyl and the oth...

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Bibliographic Details
Main Authors PITTET; ALAN O, HAGEDORN; MYRNA L, MURALIDHARA; RANYA
Format Patent
LanguageEnglish
Published 27.12.1988
Edition4
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES
CANDLES
CHEMISTRY
DETERGENT COMPOSITIONS
DETERGENTS
ESSENTIAL OILS
FATTY ACIDS THEREFROM
METALLURGY
ORGANIC CHEMISTRY
PERFUMES
PRODUCING (PRESSING, EXTRACTION), REFINING AND PRESERVINGFATS, FATTY SUBSTANCES (e.g. LANOLIN), FATTY OILS AND WAXES,INCLUDING EXTRACTION FROM WASTE MATERIALS
RECOVERY OF GLYCEROL
RESIN SOAPS
SOAP OR SOAP-MAKING
USE OF SINGLE SUBSTANCES AS DETERGENTS
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Summary:Described is a process for preparing 4,4A,5,6-tetrahydro-7-methyl-2-(3H)-naphthalenone having the structure: and intermediates useful in such process defined according to the structure: wherein one of R3 or R4 is hydrogen and the other of R3 or R4 is acetyl; and one of R1 or R2 is methyl and the other of R1 or R2 is acetoxy, said compound defined according to the structure: being useful in augmenting or enhancing the aroma or taste of consumable materials including foodstuffs, chewing gums, medicinal products, chewing tobaccos, toothpastes, smoking tobaccos, smoking tobacco articles, perfumes, colognes and perfumed articles including solid or liquid anionic, cationic, nonionic or zwitterionic detergents, fabric softeners, fabric softener articles and perfumed polymers. Also defined and claimed is the pure crystalline form of the compound defined according to the structure:
Bibliography:Application Number: US19820368640