Identification | Back Directory | [Name]
1-NAPHTHALEN-2-YL-ETHYLAMINE | [CAS]
1201-74-7 | [Synonyms]
GL-0343 Cinacalcet Impurity 58 Cinacalcet Impurity 51 1-(2-NAPHTHYL)ETHANAMINE 1-NAPHTHALEN-2-YL-ETHYLAMINE 1-(naphthalen-2-yl)ethanamine NAPHTHALENEMETHANAMINE,-METHYL- 2-NaphthaleneMethanaMine,-Methyl- a-Methyl-2-naphthalenemethanamine 2-Naphthalenemethanamine,|á-methyl- 2-Naphthalenemethanamine, α-methyl- | [Molecular Formula]
C12H13N | [MDL Number]
MFCD00014321 | [MOL File]
1201-74-7.mol | [Molecular Weight]
171.24 |
Chemical Properties | Back Directory | [Melting point ]
23 °C | [Boiling point ]
157 °C | [density ]
1.047 g/cm3 | [storage temp. ]
Keep in dark place,Inert atmosphere,2-8°C | [form ]
solid | [pka]
9.36±0.40(Predicted) | [Appearance]
Colorless to light yellow Liquid |
Hazard Information | Back Directory | [Synthesis]
GENERAL METHODS: The N-acylation of racemic 1-(naphthalen-2-yl)ethanamine, 1,2 and 3 was carried out in cyclohexane in the presence or absence of TIPS-β-CD using benzoyl chloride as the acylating reagent and triethylamine as the base. First, racemic 1-(naphthalen-2-yl)ethylamine, 1,2 and 3 (6.0 × 10^-4 mmol) were mixed with 6-O-methylsilylated β-CD in cyclohexane (600 μL) and stirred for 1 h to reach complexation equilibrium. Subsequently, 6-O-methylsilylated β-CD, triethylamine (6.0 x 10^-4 mmol) and benzoyl chloride 4a-j were added at 10 °C. The reaction mixture continued to be stirred for 6 h at 10 °C. Upon completion of the reaction, it was analyzed using chiral high-performance liquid chromatography (HPLC) on a Diacel Chiralcel OD-H column (250 mm × 4.6 mm I.D.), with the eluent being hexane/2-propanol (80:20 or 95:5), at a flow rate of 0.5 or 1.5 mL/min, and with the UV detection wavelength at 254 nm.The reaction was analyzed by HPLC in the absence and presence of the presence and in the presence of TIPS-β-CD (3.0 × 10^-3 mmol), the N-acylation reaction of 1-(naphthalen-2-yl)ethylamine, 1,2 and 3 (6.0 × 10^-4 mmol) with benzoyl chloride 4a-j (3.3 × 10^-4 mmol) in cyclohexane (600 μL) and triethylamine (6.0 × 10^-4 mmol) yielded the products, and the results are displayed in Figures 1 and 2 and S18-26, respectively. | [References]
[1] Tetrahedron, 2014, vol. 70, # 2, p. 197 - 203 |
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