Cesium carbonate → methyl N-[[2-chloro-5-[2-(4-chlorophenyl)-2H-1,2,3-triazol-4-yl]phenyl]methyl]carbamate

HRID 1496655

反応式

HRID 1496655 の反応式
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[NH:12][N:11]=[N:10][CH:9]=2)=[CH:4][C:3]=1[CH2:13][NH:14][C:15](=[O:18])[O:16][CH3:17].[Cl:19][C:20]1[CH:25]=[CH:24][C:23](I)=[CH:22][CH:21]=1.C(=O)([O-])[O-].[Cs+].[Cs+]>CN(C)C=O.C/C(/[O-])=C/C(C)=O.C/C(/[O-])=C/C(C)=O.C/C(/[O-])=C/C(C)=O.[Fe+3].[Cu]=O>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH:9]=[N:10][N:11]([C:23]3[CH:24]=[CH:25][C:20]([Cl:19])=[CH:21][CH:22]=3)[N:12]=2)=[CH:4][C:3]=1[CH2:13][NH:14][C:15](=[O:18])[O:16][CH3:17]

参加物

7

反応条件

温度
110 °C

実験手順

A mixture of methyl N-[[2-chloro-5-(1H-1,2,3-triazol-5-yl)phenyl]methyl]carbamate (i.e. the product of Step E, Example 9) (0.53 g, 2.0 mmol), 1-chloro-4-iodobenzene (0.57 g, 2.4 mmol), iron(III) acetylacetonate (0.21 g, 0.6 mmol), copper(II) oxide (0.016 g, 0.2 mmol) and cesium carbonate (1.29 g, 4.0 mmol) in N,N-dimethylformamide (4 mL) was heated at 110° C. for 14 h and then concentrated under reduced pressure. The resulting residue was suspended in ethanol and then concentrated onto silica gel (2 g). The silica gel mixture was purified by flash column chromatography using a Supelco (division of Sigma-Aldrich Co., 595 North Harrison Road, Bellefonte, Pa. 16823, U.S.A.) tube prepacked with 10 g of silica gel (50 μm particle diameter, 70 Å pore size) and 3:1 hexanes-ethyl acetate as eluant to provide methyl N-[[2-chloro-5-[2-(4-chlorophenyl)-2H-1,2,3-triazol-4-yl]phenyl]methyl]carbamate, a compound of the present invention, as a beige solid (0.105 g)

後処理

  1. concentrationconcentrated under reduced pressure
  2. concentrationconcentrated onto silica gel (2 g)
  3. customThe silica gel mixture was purified by flash column chromatography

出典と根拠

ORDレコード
ord-b78f19141324424e82594eb6322dc3f4
出典データセット
uspto-grants-2015_12
特許番号
US09198433B2

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