1559-81-5

Basic information

• Product Name: 1-METHYLTETRALINE
• Synonyms: 1-METHYLTETRALINE;NAPTHTHALENE,1,2,3,4-TETRAHYDRO-1-METHYL-;1-Methyl-1,2,3,4-tetrahydronaphthalene
• CAS NO: 1559-81-5
• Molecular Formula: C₁₁H₁₄
• Molecular Weight: 146.22886
• Mol File: 1559-81-5.mol
• Article Data: 14

Chemical Properties

• Melting Point: -35.33°C (estimate)
• Boiling Point: 220.46°C
• Flash Point: 79.1°C
• Appearance: /
• Density: 0.9548
• Vapor Pressure: 0.171mmHg at 25°C
• Refractive Index: 1.5333
• CAS DataBase Reference: 1-METHYLTETRALINE(CAS DataBase Reference)
• NIST Chemistry Reference: 1-METHYLTETRALINE(1559-81-5)
• EPA Substance Registry System: 1-METHYLTETRALINE(1559-81-5)

Safety Data

• Hazardous Substances Data: 1559-81-5(Hazardous Substances Data)

Usage

Tetralin Family

1-Methyltetralin belongs to the tetralin family of hydrocarbons, which are derivatives of tetralin with various substituents.

Physical State

Colorless liquid 1-Methyltetralin is a colorless liquid, which means it does not have any color and flows like other liquids.

Distinctive Odor

1-Methyltetralin has a distinctive smell that can be identified and is characteristic of the compound.

Solvent Usage

1-Methyltetralin is commonly used as a solvent, which means it can dissolve other substances, making it useful in various chemical processes and industries.

Starting Material

1-Methyltetralin serves as a starting material for the synthesis of other organic compounds, indicating its importance in chemical reactions and the production of various products.

Industrial Applications

The compound is used in the production of pharmaceuticals, agrochemicals, and fragrances, showcasing its versatility and importance in different industries.

Hazardous Substance

1-Methyltetralin is considered a hazardous substance, which means it poses potential risks to human health and the environment.

Controlled and Monitored Use

Due to its hazardous nature, the use of 1-Methyltetralin should be carefully controlled and monitored to minimize potential health and environmental risks.

InChI:InChI=1/C11H14/c1-9-5-4-7-10-6-2-3-8-11(9)10/h2-3,6,8-9H,4-5,7H2,1H3

Upstream product

• 607-50-1 1,1'-dinaphthylmethane 
• 75421-47-5 tert-butyl 2-indanperacetate 
• 287-92-3 Cyclopentane 
• 71-43-2 benzene 
• 7664-93-9 sulfuric acid 
• 2235-83-8 5-phenyl-2-pentanone 
• 538-68-1 pentylbenzene 
• 90-12-0 1-Methylnaphthalene 
• 119-64-2 tetralin 
• 75421-48-6 tert-butyl tetralin-1-percarboxylate 
• 75421-46-4 tert-butyl tetralin-2-percarboxylate 
• 75421-45-3 tert-butyl 1-indanperacetate 
• 4373-13-1 4-methyl-1,2-dihydronaphthalene 
• 628-76-2 1,5-dichloropentane 

Downstream Products

• 90-12-0 1-Methylnaphthalene 
• 88-99-3 benzene-1,2-dicarboxylic acid 
• 7500-53-0 1,2-Phenylenediacetic acid 
• 529-34-0 3,4-dihydronaphthalene-1(2H)-one 
• 1333-74-0 hydrogen 
• 100-42-5 styrene 
• 91-20-3 naphthalene 
• 447-53-0 1,2-Dihydronaphthalene 
• 95-13-6 1-indene 
• 91-57-6 2-Methylnaphthalene 
• 19832-98-5 4-methyl-3,4-dihydro-2H-naphthalen-1-one 

Relevant articles and documents

Alkyl-Aryl Coupling Catalyzed by Tandem Systems of Pincer-Ligated Iridium Complexes and Zeolites

We report that pincer-ligated iridium catalysts for alkane dehydrogenation can operate in tandem with zeolite catalysts for arene-alkene coupling, to effect the overall intramolecular dehydrocoupling of alkyl-H and aryl-H bonds (i.e., the dehydrocyclization of alkyl benzene). Thus, zeolite and soluble iridium cocatalysts in refluxing pentylbenzene (205 °C) gave high yields of 1-methyl-1,2,3,4-tetrahydronaphthalene. Subsequent dehydrogenation and isomerization affords 1- and 2-methylnaphthalene and 2-methyl-1,2,3,4-tetrahydronaphthalene. Total yields of cyclized product as high as 5.4 M (94%) have been obtained, corresponding to 6800 turnovers per mol Ir. Turnover numbers for the tandem-catalyzed dehydrocyclization are much greater than those obtained for simple dehydrogenation by Ir catalysts (to give olefins) in the absence of zeolite.

Nickel–Tungsten and Nickel–Molybdenum Sulfide Diesel Hydrocarbon Hydrogenation Catalysts Synthesized in Pores of Aromatic Polymer Materials

Abstract: Porous aromatic polymer materials based on tetraphenylmethane molecules linked by methylene groups have been synthesized. By impregnating these materials with nickel–tungsten and nickel–molybdenum thiosalts, catalysts for the hydrogenation of bicyclic aromatic hydrocarbons of the diesel fraction have been prepared. Nanoparticles of the active sulfide phase are formed in support pores during the reaction; it is assumed that after the formation of the nanoparticles, the support material will undergo partial degradation to rearrange the mesoporous structure into a macroporous structure providing the best diffusion of substrates to the surface of the sulfide nanoparticles. The synthesized catalysts have been tested in the hydrogenation of naphthalene and naphthalene derivatives at a hydrogen pressure of 5 MPa and a temperature of 380°C.

Synthesis of nickel-tungsten sulfide hydrodearomatization catalysts by the decomposition of oil-soluble precursors

Nickel-tungsten sulfide catalysts for the hydrogenation of aromatic hydrocarbons have been prepared by the in situ decomposition of an oil-soluble tungsten hexacarbonyl precursor in a hydrocarbon feedstock using oil-soluble nickel salt nickel(II) 2-ethylhexanoate as a source of nickel. The in situ synthesized Ni-W-S catalyst has been characterized by X-ray photoelectron spectroscopy. The activity of the resulting catalysts has been studied in the hydrogenation of bicyclic aromatic hydrocarbons and dibenzothiophene conversion in a batch reactor at a temperature of 350°C and a hydrogen pressure of 5.0 MPa. It has been shown that the optimum W: Ni molar ratio is 1: 2. Using the example of the hydrofining of feedstock with high sulfur and aromatics contents, it has been shown that the synthesized catalyst exhibits high activity in the hydrogenation of aromatic hydrocarbons.