Identification | More | [Name]
(R)-(+)-1-(4-BROMOPHENYL)ETHYLAMINE | [CAS]
45791-36-4 | [Synonyms]
(R)-1-(4-BROMOPHENYL)ETHANAMINE (R)-(+)-1-(4-BROMOPHENYL)ETHYLAMINE (R)-1-(4-BROMOPHENYL)ETHYLAMINE R(+)-4-BROMO-ALPHA-METHYLBENZYLAMINE (R)-(+)-4-BROMO A-METHYLBENZYLAMINE (R)-(+)-P-BROMO-ALPHA-METHYLBENZYLAMINE (R)(+)-P-BROMO-ALPHA-PHENETHYLAMINE Benzenemethanamine, 4-bromo-alpha-methyl-, (R)- (R)-(+)-1-(4-Bromopheyl)ethylamine (r)-(+)-1-(4-bromophenyl)ethylamine, chipros (r)-(+)-4-bromo-α-methylbenzylamine (r)-(+)-p-bromo-à-methylbenzylamine (R)-(+)-1-(4-Bromophenyl)ethylamine, ChiPros, 99%, ee 98% Benzenemethanamine, 4-bromo-α-methyl-, (αR)- (R)-(+)-1-(4-Bromophenyl)ethylamine, ChiPros, 98%, ee 98+% (R)-(+)-1-(4-BROMOPHENYL)ETHYLAMINE, 95%, 98% EE (R)-(+)-1-(4-Bromophenyl)ethylamine, 98% ee (1R)-1-(4-Bromophenyl)ethaneamine (R)-α-Methyl-4-bromobenzylamine (αR)-α-Methyl-4-bromobenzenemethanamine | [EINECS(EC#)]
256-245-0 | [Molecular Formula]
C8H10BrN | [MDL Number]
MFCD00066025 | [Molecular Weight]
200.08 | [MOL File]
45791-36-4.mol |
Chemical Properties | Back Directory | [Appearance]
clear colorless liquid | [Melting point ]
-25°C | [alpha ]
20.5 º (C=3% IN MEOH) | [Boiling point ]
140-145 °C (30 mmHg) | [density ]
1.390 g/mL at 20 °C(lit.)
| [refractive index ]
n20/D 1.566
| [Fp ]
>110°C | [storage temp. ]
Keep in dark place,Inert atmosphere,2-8°C | [form ]
clear liquid | [pka]
8.82±0.10(Predicted) | [color ]
Colorless to Almost colorless | [Optical Rotation]
[α]20/D +20.5±1°, c = 3% in methanol | [Sensitive ]
Air Sensitive | [BRN ]
2412319 | [CAS DataBase Reference]
45791-36-4(CAS DataBase Reference) | [NIST Chemistry Reference]
(+)-P-bromo-«alpha»-phenethylamine(45791-36-4) |
Safety Data | Back Directory | [Hazard Codes ]
C | [Risk Statements ]
R34:Causes burns. | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . S28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) . S36/37/39:Wear suitable protective clothing, gloves and eye/face protection . S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) . | [RIDADR ]
UN 2735 8/PG 3
| [WGK Germany ]
3
| [F ]
10-23 | [HazardClass ]
8 | [PackingGroup ]
II | [HS Code ]
29214990 |
Hazard Information | Back Directory | [Chemical Properties]
clear colorless liquid | [Synthesis]
General procedure for the synthesis of 1-(4-bromophenyl)ethylamine from 1-(4-bromophenyl)ethylamine: 600 g of R-mandelic acid is added to a mixture of 2900 ml of isopropanol and 1500 ml of ethanol and heated to 60°C to dissolve completely. Subsequently 790 g of 4-bromophenethylamine is slowly added (note the exothermic reaction). After the reaction solution cooled naturally to room temperature, it was allowed to stand overnight with continuous stirring during the period. The solid product was collected by filtration and dried to give 660 g of crystals. The resulting crystals were dissolved in a mixture of 2000 ml of isopropanol and 1100 ml of ethanol, heated to 60°C to dissolve the crystals completely, and then cooled to room temperature. After standing overnight, the reaction mixture was stirred, the solid product was collected by filtration and washed with a small amount of acetone and dried to give 510 g of crystals. It was neutralized to basicity with 4M sodium hydroxide solution and subsequently extracted three times with dichloromethane. The organic phases were combined, dried and concentrated to give a final 260.7 g of colorless liquid product in 33% yield. | [References]
[1] Patent: CN106957255, 2017, A. Location in patent: Paragraph 0059-0061; 0073-0075; 0087-0089 [2] Chemical Communications, 2013, vol. 49, # 77, p. 8629 - 8631 [3] ChemCatChem, 2014, vol. 6, # 4, p. 992 - 995 |
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