Dimethylformamide → N-[2-(3,4-dimethoxyphenyl)ethyl]-2-(N-benzyloxycarbonyl-p-toluidino)-acetamide

HRID 543741

반응식

HRID 543741 반응식
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH2:11][CH2:12][NH:13][C:14](=[O:24])[CH2:15][NH:16][C:17]2[CH:22]=[CH:21][C:20]([CH3:23])=[CH:19][CH:18]=2)[CH:6]=[CH:7][C:8]=1[O:9][CH3:10].C(=O)([O-])[O-].[K+].[K+].CN(C)C=O.Cl[C:37]([O:39][CH2:40][C:41]1[CH:46]=[CH:45][CH:44]=[CH:43][CH:42]=1)=[O:38]>C(Cl)(Cl)Cl>[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH2:11][CH2:12][NH:13][C:14](=[O:24])[CH2:15][N:16]([C:37]([O:39][CH2:40][C:41]2[CH:46]=[CH:45][CH:44]=[CH:43][CH:42]=2)=[O:38])[C:17]2[CH:18]=[CH:19][C:20]([CH3:23])=[CH:21][CH:22]=2)[CH:6]=[CH:7][C:8]=1[O:9][CH3:10]

참가 물질

6

반응물 4

HCID 6228DimethylformamideHCID 10387Benzyl chloroformateHCID 11430Potassium CarbonateHCID 10042154N-[2-(3,4-dimethoxyphenyl)ethyl]-2-(p-toluidino)acetamide

생성물 1

HCID 20460509N-[2-(3,4-dimethoxyphenyl)ethyl]-2-(N-benzyloxycarbonyl-p-toluidino)-acetamide수율 84.8%

시약·촉매·용매 1

HCID 6212Chloroform용매

실험 절차

A mixture of N-[2-(3,4-dimethoxyphenyl)ethyl]-2-(p-toluidino)acetamide (3.6 g) and anhydrous potassium carbonate (2.5 g) was added to anhydrous dimethylformamide (25 ml). The mixture was vigorously stirred under ice cooling and to the solution was dropwise added over 20 minutes an anhydrous chloroform solution (5 ml) containing benzyl chloroformate (2.04 g). The reaction mixture was poured into ice-water and extracted with chloroform. The extract was washed with water, dried and the solvent was distilled off. The residue was crystallized by treating with ether to give N-[2-(3,4-dimethoxyphenyl)ethyl]-2-(N-benzyloxycarbonyl-p-toluidino)-acetamide (4.3 g), mp 81° to 85° C.

후처리

  1. extractionextracted with chloroform
  2. washThe extract was washed with water
  3. customdried
  4. distillationthe solvent was distilled off
  5. customThe residue was crystallized
  6. additionby treating with ether

출처 및 근거

ORD 기록
ord-1160d815c9d64b1188751560b0021423
출처 데이터셋
uspto-grants-1984_05
특허 번호
US04447436

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