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CAS No.: | 6683-48-3 |
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Name: | 1,1,4,4,6-Pentamethyl-1,2,3,4-tetrahydronaphthalene |
Article Data: | 46 |
Molecular Structure: | |
Formula: | C15H22 |
Molecular Weight: | 202.34 |
Synonyms: | 1,2,3,4-TETRAHYDRO-1,1,4,4,6-PENTAMETHYLNAPHTHALENE;1,2,3,4-TETRAHYDRO-1,1,4,4,6-PENTAMETHYLNAPHTHYLENE;1,1,4,4,6-PENTAMETHYL-1,2,3,4-TETRAHYDRONAPHTHALENE;1,2,3,4-Tetrahydro-1,1,4,4,6-pentamethylnaphtalene;1,1,4,4,6-Pentamethyl-1,2,3,4-;1,2,3,4-TETRAHYDRO-1,1,4,4,6-PENTAMETHYLNAPHTALENE: TECH.;1,1,4,4,6-Pentamethyltetralin;1,1,4,4,6-Pentamethyl-1,2,3,4-etrahydronaphthalene |
EINECS: | 229-724-7 |
Density: | 0.882 g/cm3 |
Melting Point: | 31 |
Boiling Point: | 267.4 °C at 760 mmHg |
Flash Point: | 112.5 °C |
Hazard Symbols: | Xi |
Risk Codes: | 20/21/22 |
Safety: | 26-36/37/39 |
PSA: | 0.00000 |
LogP: | 4.34400 |
2,5-dichloro-2,5-dimethyl hexane
toluene
1,1,4,4,6-pentamethyl-1,2,3,4-tetrahydronaphthalene
Conditions | Yield |
---|---|
With aluminium trichloride for 12h; Heating; | 99% |
With aluminium trichloride In dichloromethane at 20℃; Friedel-Crafts alkylation; | 99% |
With aluminium trichloride In dichloromethane Friedel-Crafts alkylation; Heating; | 97% |
2,5-dichloro-2,5-dimethyl hexane
1,1,4,4,6-pentamethyl-1,2,3,4-tetrahydronaphthalene
Conditions | Yield |
---|---|
With aluminum (III) chloride In toluene for 0.416667h; | 97% |
1,1,4,4,6-pentamethyl-1,4-dihydronaphthalene
1,1,4,4,6-pentamethyl-1,2,3,4-tetrahydronaphthalene
Conditions | Yield |
---|---|
With hydrogen; palladium on activated charcoal In ethyl acetate for 1h; | 80% |
Conditions | Yield |
---|---|
Stage #1: 2,5-dimethyl-2,5-hexanediol With hydrogenchloride In water at 20℃; for 1h; Stage #2: toluene With aluminum (III) chloride In dichloromethane at 20℃; for 3h; | 76% |
5,6,7,8-tetrahydro-3,5,5,8,8-pentamethylnaphthalene-1-carbaldehyde
1,1,4,4,6-pentamethyl-1,2,3,4-tetrahydronaphthalene
Conditions | Yield |
---|---|
With Wilkinson's catalyst In toluene Heating; |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: HCl conc. / 3 h / 20 °C 2: 99 percent / AlCl3 / CH2Cl2 / 20 °C View Scheme | |
Multi-step reaction with 2 steps 1: 56 percent / HCl gas / ethanol 2: 91 percent / AlCl3 / CH2Cl2 / 1.) RT, 30 min, 2.) reflux, 15 min View Scheme | |
Multi-step reaction with 2 steps 1: conc. HCl, HCl gas / 0.25 h / 0 °C 2: 80.4 percent / AlCl3 / 1 h / 0 °C View Scheme |
1,1,4,4,7-pentamethyl-2-oxo-1,2,3,4-tetrahydronaphthalene
1,1,4,4,6-pentamethyl-1,2,3,4-tetrahydronaphthalene
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 87 percent / LiAlH4 / diethyl ether / 1 h / Heating 2: 79 percent / POCl3, pyridine / 100 °C 3: 80 percent / H2 / 10percent Pd/C / ethyl acetate / 1 h View Scheme |
2,2,5,5-tetramethyltetrahydro-3-oxofuran
1,1,4,4,6-pentamethyl-1,2,3,4-tetrahydronaphthalene
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 45 percent / AlCl3 / 2 h / 0 - 20 °C 2: 87 percent / LiAlH4 / diethyl ether / 1 h / Heating 3: 79 percent / POCl3, pyridine / 100 °C 4: 80 percent / H2 / 10percent Pd/C / ethyl acetate / 1 h View Scheme |
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 45 percent / AlCl3 / 2 h / 0 - 20 °C 2: 87 percent / LiAlH4 / diethyl ether / 1 h / Heating 3: 79 percent / POCl3, pyridine / 100 °C 4: 80 percent / H2 / 10percent Pd/C / ethyl acetate / 1 h View Scheme |
1,1,4,4,7-pentamethyl-2-hydroxy-1,2,3,4-tetrahydronaphthalene
1,1,4,4,6-pentamethyl-1,2,3,4-tetrahydronaphthalene
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 79 percent / POCl3, pyridine / 100 °C 2: 80 percent / H2 / 10percent Pd/C / ethyl acetate / 1 h View Scheme |
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The Molecular Structure of 1,1,4,4,6-Pentamethyl-1,2,3,4-tetrahydronaphthalene (CAS NO.6683-48-3):
Empirical Formula: C15H22
Molecular Weight: 202.3352
Nominal Mass: 202 Da
Average Mass: 202.3352 Da
Monoisotopic Mass: 202.172151 Da
Index of Refraction: 1.491
Molar Refractivity: 66.5 cm3
Molar Volume: 229.3 cm3
Surface Tension: 30.1 dyne/cm
Density: 0.882 g/cm3
Flash Point: 112.5 °C
Enthalpy of Vaporization: 48.51 kJ/mol
Boiling Point: 267.4 °C at 760 mmHg
Melting Point: 31 °C
Vapour Pressure: 0.0134 mmHg at 25°C
IUPAC Name: 1,1,4,4,6-pentamethyl-2,3-dihydronaphthalene
Product Categories: Fused Ring Systems
Synonyms: 1,2,3,4-Tetrahydro-1,1,4,4,6-pentamethylnaphthalene ; 1,2,3,4-Tetrahydro-1,1,4,4,6-pentamethylnaphthylene ; 1,1,4,4,6-pentamethyl-1,2,3,4-tetrahydronaphthalene ; 1,2,3,4-Tetrahydro-1,1,4,4,6-pentamethylnaphtalene ; 1,1,4,4,6-Pentamethyl-1,2,3,4- ; 1,2,3,4-Tetrahydro-1,1,4,4,6-pentamethylnaphtalene tech ; 1,1,4,4,6-Pentamethyltetralin ; 1,1,4,4,6-Pentamethyl-1,2,3,4-etrahydronaphthalene
Hazard Codes: Xi
Risk Statements: 20/21/22
R20/21/22: Harmful by inhalation, in contact with skin and if swallowed
Safety Statements: 26-36/37/39
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
S36/37/39: Wear suitable protective clothing, gloves and eye/face protection
Hazard Note: Irritant
HazardClass: IRRITANT