3-Methoxyaniline → alpha-Ethynyl-N-(m-methoxyphenyl)-benzenemethanamine

HRID 14428

Reaktionsgleichung

Reaktionsgleichung von HRID 14428
C(=O)([O-])O[CH2:3][CH:4]=[CH:5][C:6]1[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=1.[CH3:14][O:15][C:16]1[CH:21]=[CH:20][CH:19]=[C:18]([NH2:22])[CH:17]=1>>[C:4]([CH:5]([C:6]1[CH:7]=[CH:8][CH:9]=[CH:10][CH:11]=1)[NH:22][C:18]1[CH:19]=[CH:20][CH:21]=[C:16]([O:15][CH3:14])[CH:17]=1)#[CH:3]

Komponenten

3

Edukt 2

HCID 108243-MethoxyanilineHCID 71446589Cinnamyl carbonate

Produkt 1

HCID 86607480alpha-Ethynyl-N-(m-methoxyphenyl)-benzenemethanamineAusbeute 82,6 %

Versuchsvorschrift

The general procedure was followed with cinnamyl carbonate (0.188 g, 0.979 mmol) and m-anisidine (0.150 g, 1.22 mmol). The reaction was conducted at room temperature for 12 h. 1H NMR analysis of the crude reaction mixture indicated the ratio of regioisomers to be 97/3. The mixture was purified by flash column chromatography on silica gel (4% ethyl acetate in hexanes) to give the title compound (0.192 g, 82%). [α]DRT=(c, CHCl3). 1H NMR (400.13 MHz, CDCl3) δ 7.50-7.40 (m, 4H), 7.36 (tt, J=6.8, 2.0 Hz, 1H), 7.14 (t, J=8.0 Hz, 1H), 6.37 (dd, J=8.0, 2.4 Hz, 1H), 6.32 (dd, J=8.4, 2.0 Hz, 1H), 6.12 (ddd, J=16.8, 10.0, 6.0 Hz, 1H), 5.37 (dt, J=16.8, 1.4 Hz, 1H), 5.32 (dt, J=10.4, 1.4 Hz, 1H), 5.03 (br s, 1H), 4.18 (br s, 1H), 3.79 (s, 3H). 13C NMR (100.59 MHz, CDCl3) δ 160.50, 148.47, 141.68, 138.84, 129.71, 128.63, 127.35, 127.02, 115.98, 106.53, 102.62, 99.46, 60.71, 54.85. Anal. Calcd for C16H17NO: C, 80.30; H, 7.16; N, 5.85. Found: C, 80.17; H, 7.24; N, 5.78.

Aufarbeitung

  1. custom1H NMR analysis of the crude reaction mixture
  2. customThe mixture was purified by flash column chromatography on silica gel (4% ethyl acetate in hexanes)

Quellen und Nachweise

ORD-Eintrag
ord-ddd0c858813145378e4c90d0ae00f598
Quelldatensatz
uspto-grants-2010_06
Patentnummer
US07732365B2

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