32820-12-5

Usage

Uses

Used in Fragrance Industry:
5,8-diMethyl-1,2,3,4-tetrahydronaphthalen-1-ol (en)1-Naphthalenol is used as a fragrance ingredient for its unique scent profile. Its distinct chemical structure contributes to the creation of various fragrances used in perfumes, cosmetics, and other scented products.
Used in Pharmaceutical Industry:
In the pharmaceutical industry, 5,8-diMethyl-1,2,3,4-tetrahydronaphthalen-1-ol (en)1-Naphthalenol serves as a key intermediate in the synthesis of various drugs. Its unique chemical properties allow for the development of new medications with potential therapeutic benefits.
Used in Chemical Synthesis:
5,8-diMethyl-1,2,3,4-tetrahydronaphthalen-1-ol (en)1-Naphthalenol is used as an intermediate in the synthesis of other organic compounds. Its versatile chemical structure makes it a valuable building block for the development of new chemical products and materials.
Safety Precautions:
Due to the potential toxicity of 5,8-diMethyl-1,2,3,4-tetrahydronaphthalen-1-ol (en)1-Naphthalenol, it is essential to handle and use 5,8-diMethyl-1,2,3,4-tetrahydronaphthalen-1-ol (en)1-Naphthalenol with proper safety measures. This includes wearing appropriate personal protective equipment, working in well-ventilated areas, and following guidelines provided by trained professionals to minimize health risks.

Upstream product

• 5037-63-8 5,8-dimethyltetralone 
• 106-42-3 para-xylene 
• 1453-06-1 4-(p-xylyl)butyric acid 

Relevant academic research and scientific papers

Transformation of 5,8-dimethyl-1-tetralone: Synthesis of ar-occidol

Reduction of 5,8-dimethyl-1-tetralone 1 with sodium borohydride in methanol followed by methylation of the resulting alcohol with methyl iodide and sodium hydride yielded a methyl ether. This was oxidised with potassium permanganate and acetonitrile to give 4-methoxy-5,8-dimethyle-1-tetralone. Methoxycarbonylation of the ketone with dimethylcarbonate (DMC) in the presence of sodium hydride in dimethoxyethane (DME) afforded β-ketoester 5 which on heating with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) in dioxane underwent aromatisation and elimination to furnish a naphthalene. The mesyl derivative the phenol on hydrogenation produced methyl 5,8-dimethyl-2- naphthoate. The transformation of naphthoate into ar-occidol was accomplished by a Grignard reaction with methyllithium in ether.

A new synthesis of occidol

Sodium borohydride reduction of 5,8-dimethyl-3,4-dihydronaphthalen-1-(2H)-one (4) yielded 5,8-dimethyl-1,2,3,4-tetrahydro-1-naphthol (5). The tetralol 5 on Vilsmeier-Haack reaction with N,N-dimethylacetamide yielded 1-(5,8-dimethyl-3,4-dihydro-2-naphthyl)

Studies in Terpenoids: Part L - A Simple Synthesis of Methyl 5,8-Dimethyl-1,2,3,4-tetrahydro-2-naphthoate & Its Conversion into (+/-)-Occidol

5,8-Dimethyl-1-tetralol (V), obtained from the known 5,8-dimethyl-1-tetralone (IV), on Vilsmeier formylation gives the dimethyl dihydronaphthaldehyde (VIa).Its oxidation to the acid (VIb) followed by hydrogenation and esterification gives methyl 5,8-dimethyl-1,2,3,4-tetrahydro-2-naphthoate (IIIb) (title compound), a key intermediate in the synthesis of (+/-)-occidol (I).By Grignard reaction with CH3MgI the ester (IIIb) has been converted into the sesquiterpene alcohol (I).