42775-75-7

Basic information

• Product Name: 5-ETHYLTETRALINE
• Synonyms: 5-Ethyl-1,2,3,4-tetrahydronaphthalene;5-Ethyltetralin;naphthalene,5-ethyl-1,2,3,4-tetrahydro-;tetralin,5-ethyl-;5-ETHYLTETRALINE;Naphthalene, 5-ethyl-1,2,3,4-tetra
• CAS NO: 42775-75-7
• Molecular Formula: C₁₂H₁₆
• Molecular Weight: 160.26
• Mol File: 42775-75-7.mol
• Article Data: 4

Chemical Properties

• Melting Point: -44.55°C
• Boiling Point: 248.02°C
• Flash Point: 98.4°C
• Appearance: /
• Density: 0.9730
• Vapor Pressure: 0.0593mmHg at 25°C
• Refractive Index: 1.5400
• CAS DataBase Reference: 5-ETHYLTETRALINE(CAS DataBase Reference)
• NIST Chemistry Reference: 5-ETHYLTETRALINE(42775-75-7)
• EPA Substance Registry System: 5-ETHYLTETRALINE(42775-75-7)

Safety Data

• Hazardous Substances Data: 42775-75-7(Hazardous Substances Data)

Usage

InChI:InChI=1/C12H16/c1-2-10-7-5-8-11-6-3-4-9-12(10)11/h5,7-8H,2-4,6,9H2,1H3

Upstream product

• 119-64-2 tetralin 
• 60-29-7 diethyl ether 
• 64-17-5 ethanol 
• 74-85-1 ethene 
• 1127-76-0 1-ethylnapthelene 
• 52910-30-2 3,5-Dinitro-benzoic acid bicyclo[4.4.1]undeca-1,3,5-trien-11-ylmethyl ester 
• 3433-80-5 1-Bromo-2-bromomethyl-benzene 
• 87779-57-5 bromo-5 dihydro-3,4 naphthalene 
• 68449-30-9 5-bromo-1-tetralone 
• 90841-47-7 4-(2-bromophenyl)butanoic acid 
• 92013-28-0 1,1-bis(ethoxycarbonyl)-3-(2'-bromophenyl)propane 
• 1074-16-4 2-bromophenylethyl alcohol 
• 18698-97-0 ortho-bromophenylacetic acid 
• 19472-74-3 2-(2-bromophenyl)acetonitrile 

Downstream Products

• 51015-33-9 8-Ethyl-3,4-dihydro-2H-naphthalen-1-one 
• 51015-31-7 5-ethyl-3,4-dihydro-2H-naphthalen-1-one 

Relevant articles and documents

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Reduction of Polycyclic Arenes by BH-Boranes, II Borane Catalyzed Hydrogenation of Naphthalenes to Tetralins

Tetrapropyldiborane(6) (TPDB) and triethylborane (TEB) catalyze the regioselective and partial hydrogenation of naphthalene (N) and a number of substituted naphthalenes at 170 deg C to 200 deg C and hydrogen pressures of 25-100 bar.Tetralin (T) is formed quantitatively.Naphthalene derivatives are mainly hydrogenated in the least substituted ring.In the case of alkyl substituents, Lewis acid catalyzed migration and, to a lesser extent C-C bond rupture, lower the yield of the main tetralin derivative.Chlorinated naphthalenes and at the O-atom derivatized naphthols undergo also partial loss of the chloro or oxygen functional groups.The i nitially added borane acts only as a precatalyst and its slowly converted to catalytically active polyboranes of as yet unknown structures.Keywords: Hydroboranes/ Hydrogenation/ Naphthalenes/ Tetralins

LOW TEMPERATURE REACTION OF AROMATIC HYDROCARBONS WITH ETHYLENE AND SOLVATED ELECTRONS

A wide variety of aromatic hydrocarbons can be ethylated at benzylic and aromatic positions by treatment with ethylene and potassium in glyme/octaglyme at -25 deg C.