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Cas Database |
| Name |
7-Methoxy-2-tetralone |
EINECS | 223-954-1 |
| CAS No. | 4133-34-0 | Density | 1.124 g/cm3 |
| PSA | 26.30000 | LogP | 1.75300 |
| Solubility | 1.151g/L at 25℃ | Melting Point |
27 - 28oC |
| Formula | C11H12O2 | Boiling Point | 306.8 °C at 760 mmHg |
| Molecular Weight | 176.215 | Flash Point | 150.8 °C |
| Transport Information | N/A | Appearance | Clear yellow to orange liquid after melting |
| Safety | 24/25-36-26 | Risk Codes | 20/21/22-36/37/38 |
| Molecular Structure |
|
Hazard Symbols |
 Xn,  Xi
|
| Synonyms |
7-Methoxy-1,2,3,4-tetrahydronaphthalen-2-one;7-methoxytetralin-2-one;7-Methoxy-3,4-dihydronaphthalen-2(1H)-one;7-methoxy-3,4-dihydronaphthalen-2-one; |
Article Data | 27 |
7-Methoxy-2-tetralone Synthetic route
- 75804-69-2
(1S,2R)-7-Methoxy-1,2,3,4-tetrahydro-naphthalene-1,2-diol
- 4133-34-0
7-methoxyl-2-tetralone
| Conditions | Yield |
|---|---|
| With toluene-4-sulfonic acid In benzene for 0.25h; Heating; | 98% |
- 73780-78-6
1-(but-3-yn-1-yl)-4-methoxybenzene
- 4133-34-0
7-methoxyl-2-tetralone
| Conditions | Yield |
|---|---|
| With 2,6-dichloropyridine N-oxide; C33H54AuClP; sodium tetrakis[(3,5-di-trifluoromethyl)phenyl]borate In 1,2-dichloro-ethane at 50℃; for 6h; | 98% |
- 1048330-08-0
7-methoxy-3,4-dihydronaphthalen-2(1H)-one sodium hydrogencarbonate
- 4133-34-0
7-methoxyl-2-tetralone
| Conditions | Yield |
|---|---|
| With hydrogenchloride In water; toluene at 20℃; for 3h; | 92% |
- 1190847-93-8
C15H24O4
- 4133-34-0
7-methoxyl-2-tetralone
| Conditions | Yield |
|---|---|
| With titanium tetrachloride In dichloromethane at 0 - 20℃; for 2h; Friedel Crafts reaction; | 85% |
- 63320-02-5
6-methoxy-1a,2,3,7b-tetrahydronaphtho[1,2-b]oxirene
- 4133-34-0
7-methoxyl-2-tetralone
| Conditions | Yield |
|---|---|
| With zinc(II) iodide In benzene for 3h; Heating; | 74% |
| With zinc(II) iodide In benzene |
- 1160858-16-1
C13H16O5
- 4133-34-0
7-methoxyl-2-tetralone
| Conditions | Yield |
|---|---|
| With titanium tetrachloride In dichloromethane at -78 - 20℃; for 4h; | 73% |
- 153993-00-1
tert-Butyl-[3-(4-methoxy-phenyl)-1-methylene-propoxy]-dimethyl-silane
A
- 104-20-1
4-(4-methoxyphenyl)-2-butanone
B
- 4133-34-0
7-methoxyl-2-tetralone
| Conditions | Yield |
|---|---|
| With naphthalene-1,4-dicarbonitrile In water; acetonitrile for 3h; Irradiation; | A 10% B 72% |
| With naphthalene-1,4-dicarbonitrile In water; acetonitrile for 4h; Cyclization; desilylation; Irradiation; | A 10% B 72% |
- 4133-34-0
7-methoxyl-2-tetralone
| Conditions | Yield |
|---|---|
| With hydrogenchloride Heating; | 70% |
| Conditions | Yield |
|---|---|
| With ethanol; sodium und anschlissend mit wss.HCl; | |
| With hydrogenchloride; ammonia; sodium 1) EtOH, Et2O, THF, -78 deg C; Yield given. Multistep reaction; | |
| With hydrogenchloride; ethanol; sodium 1.) reflux, 1 h, 2.) EtOH, reflux, 30 min; Multistep reaction; |
- 60683-71-8
1,4-dihydro-2,7-dimethoxynaphthalene
- 4133-34-0
7-methoxyl-2-tetralone
| Conditions | Yield |
|---|---|
| With hydrogenchloride | |
| With hydrogenchloride In acetone for 0.5h; Heating; | 8.2 g |
| With hydrogenchloride In water; acetone at 25 - 30℃; for 0.25h; | 0.42 g |
7-Methoxy-2-tetralone Chemical Properties
Molecular Structure:
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Molecular Formula: C11H12O2
Molecular Weight: 176.2118
IUPAC Name: 7-Methoxy-3,4-dihydro-1H-naphthalen-2-one
Synonyms of 7-Methoxy-2-tetralone (CAS NO.4133-34-0): EINECS 223-954-1 ; 7-Methoxy-1,2,3,4-tetrahydronaphthalen-2-one
CAS NO: 4133-34-0
Product Categories: Benzocycles ; Aromatic Ketones (substituted) ; API intermediates ; Fused Ring Systems ; C11 to C12 ; Carbonyl Compounds ; Ketones
Index of Refraction: 1.548
Molar Refractivity: 49.84 cm3
Molar Volume: 156.7 cm3
Surface Tension: 40.8 dyne/cm
Density: 1.124 g/cm3
Flash Point: 150.8 °C
Enthalpy of Vaporization: 54.73 kJ/mol
Boiling Point: 306.8 °C at 760 mmHg
Vapour Pressure: 0.000754 mmHg at 25°C
7-Methoxy-2-tetralone Uses
7-Methoxy-2-tetralone (CAS NO.4133-34-0) is used as pharmaceutical intermediates.
7-Methoxy-2-tetralone Safety Profile
Hazard Codes of 7-Methoxy-2-tetralone (CAS NO.4133-34-0): 
Xi,Xn
Risk Statements: 20/21/22-36/37/38
R20/21/22: Harmful by inhalation, in contact with skin and if swallowed.
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements: 24/25-36-26
S24/25: Avoid contact with skin and eyes.
S36: Wear suitable protective clothing.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
WGK Germany: 3
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