1203-17-4

Usage

Uses

Used in Fragrance Industry:
1,1,2,3,3-pentamethylindan is used as a fragrance ingredient for its strong odor, adding pleasant scents to products such as perfumes and household cleaners.
Used in Chemical Synthesis:
1,1,2,3,3-pentamethylindan is used as a precursor in the synthesis of other organic compounds, contributing to the production of various chemical products.
Safety:
1,1,2,3,3-pentamethylindan is considered to have low toxicity and is not known to have any harmful effects on human health or the environment when used in accordance with standard safety guidelines.

InChI:InChI=1/C14H20/c1-10-13(2,3)11-8-6-7-9-12(11)14(10,4)5/h6-10H,1-5H3

Upstream product

• 513-35-9 2-methyl-but-2-ene 
• 98-83-9 isopropenylbenzene 
• 75-85-4 tert-Amyl alcohol 
• 33704-60-8 1,1,2,3,3-pentamethyl-octahydro-1H-indene 

Downstream Products

• 71441-14-0 2-(1,1,2,3,3-pentamethyl-indanyl-5)-1-(E)-(4-carbethoxy-phenyl)-propene 
• 4755-83-3 5-acetyl-2,3-dihydro-1,1,2,3,3-pentamethyl-(1H)-indene 
• 72927-83-4 1,1,2,3,3-pentamethyl-5-β-hydroxyisopropylindane 
• 33704-59-5 2,3,4,5,6,7-hexahydro-1,1,2,3,3-pentamethyl-1H-indene 
• 33704-60-8 1,1,2,3,3-pentamethyl-octahydro-1H-indene 
• 1222-05-5 galaxolide 
• 1217-08-9 2-(1',1',2',3',3'-pentamethyl-5'-indanyl)-1-propanol 
• 1310692-49-9 2-[(2,3-dihydro-1,1,2,3,3-pentamethyl-1H-inden-5-yl)carbamoyl]benzoic acid 
• 1310692-48-8 4-[(2,3-dihydro-1,1,2,3,3-pentamethyl-1H-inden-5-yl)carbamoyl]benzoic acid 

Relevant academic research and scientific papers

Synthetic process of galaxolide

The invention relates to a synthetic process of galaxolide. When an intermediate 1,1,2,3,3-pentamethylindane is prepared, macroporous strong-acidic styrenes cation exchanging resin prepared by the process is selected as a catalyst to react under a condition of no solvent, so that the pollution of waste gas, waste solids and waste water can be reduced, the solid catalysis is easy to separate, the industrialized production is facilitated, and the yield reaches up to 70 percent or more.

CIRCULAR ECONOMY METHODS OF PREPARING UNSATURATED COMPOUNDS

Methods of preparing unsaturated compounds or analogs through dehydrogenation of corresponding saturated compounds and/or hydrogenation of aromatic compounds are disclosed.

CIRCULAR ECONOMY METHODS OF PREPARING UNSATURATED COMPOUNDS

Methods of preparing unsaturated compounds or analogs through dehydrogenation of corresponding saturated compounds and/or hydrogenation of aromatic compounds are disclosed.

Preparation of indanes

Indanes are prepared by reacting substituted or unsubstituted benzyl halides with olefins in the presence of a Lewis acid as catalyst by reacting benzyl halides I STR1 (where R1 and R2 =hydrogen, alkyl, alkoxy, cycloalkyl, aryl, aryloxy, aralkyl R3 =R1, halogen or an ortho-fused ring system X=halogen) with olefins II STR2 (where R4 to R7 =hydrogen or alkyl unbranched at alpha) in the presence of catalytic amounts of titanium tetrachloride.

Process for the production of compounds useful in perfumery

Process for producing compounds useful in perfumery including isochromans and acylated indane hydrocarbons with an alkylene oxide or with a lower acyl halide in the presence of a hydrocarbon or hydrocarbon mixture containing C5 to C10 alkanes at a temperature of from -20° C. up to -5° C. In the case of forming isochromans, the resulting alcohol is reacted, in situ, with a lower alkanol and a formaldehyde precursor at temperatures of from 20° C. up to 80° C.