p-Toluenesulfonic acid → 2-(4-benzyloxy-3,5-dimethyl-phenyl)-5,7-dimethoxy-3H-quinazolin-4-one

HRID 336781

反応式

HRID 336781 の反応式
[NH2:1][C:2]1[CH:10]=[C:9]([O:11][CH3:12])[CH:8]=[C:7]([O:13][CH3:14])[C:3]=1[C:4]([NH2:6])=[O:5].[CH3:15][C:16]1[CH:17]=[C:18]([CH:21]=[C:22]([CH3:32])[C:23]=1[O:24][CH2:25][C:26]1[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=1)[CH:19]=O.S([O-])(O)=O.[Na+].C1(C)C=CC(S(O)(=O)=O)=CC=1>CN(C)C(=O)C.O>[CH2:25]([O:24][C:23]1[C:16]([CH3:15])=[CH:17][C:18]([C:19]2[NH:6][C:4](=[O:5])[C:3]3[C:2](=[CH:10][C:9]([O:11][CH3:12])=[CH:8][C:7]=3[O:13][CH3:14])[N:1]=2)=[CH:21][C:22]=1[CH3:32])[C:26]1[CH:27]=[CH:28][CH:29]=[CH:30][CH:31]=1

参加物

7

反応物 4

HCID 6101p-Toluenesulfonic acidHCID 5635574-(Benzyloxy)-3,5-dimethylbenzaldehydeHCID 203490162-Amino-4,6-dimethoxybenzamideHCID 23665763Sodium Bisulfite

生成物 1

HCID 1360379952-(4-benzyloxy-3,5-dimethyl-phenyl)-5,7-dimethoxy-3H-quinazolin-4-one収率 79%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 31374Dimethylacetamide溶媒

反応条件

温度
150 °C

実験手順

A mixture of 2-amino-4,6-dimethoxy-benzamide (0.71 g, 3.71 mmol), 3,5-dimethyl-4-benzyloxy benzaldehyde (0.94 g, 3.90 mmol), sodium hydrogensulfite (0.68 g, 3.90 mmol) and p-toluenesulfonic acid (70 mg, 0.37 mmol) in N,N-dimethylacetamide (25 mL) was stirred at 150° C. for 16 h. The reaction mixture was cooled to room temperature and diluted with water (200 mL). The resulting solid was collected by filtration and washed with hexanes to afford 2-(4-benzyloxy-3,5-dimethyl-phenyl)-5,7-dimethoxy-3H-quinazolin-4-one as a white solid (1.2 g, 79%).

後処理

  1. temperatureThe reaction mixture was cooled to room temperature
  2. filtrationThe resulting solid was collected by filtration
  3. washwashed with hexanes

出典と根拠

ORDレコード
ord-9e68d5b9df224987a73e1883e20889cd
出典データセット
uspto-grants-2014_11
特許番号
US08889698B2

関連ノート

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