4-Amino-3-chlorobenzoic acid → 4-amino-3-chloro-N-(1-methyl-4-piperidyl)benzamide

HRID 1676530

반응식

HRID 1676530 반응식
[NH2:1][C:2]1[CH:10]=[CH:9][C:5]([C:6]([OH:8])=O)=[CH:4][C:3]=1[Cl:11].[NH2:12][CH:13]1[CH2:18][CH2:17][N:16]([CH3:19])[CH2:15][CH2:14]1.C(N(C(C)C)C(C)C)C>CN(C)C=O.C(=O)([O-])[O-].[Na+].[Na+]>[NH2:1][C:2]1[CH:10]=[CH:9][C:5]([C:6]([NH:12][CH:13]2[CH2:18][CH2:17][N:16]([CH3:19])[CH2:15][CH2:14]2)=[O:8])=[CH:4][C:3]=1[Cl:11]

참가 물질

6

반응물 3

HCID 172114-Amino-3-chlorobenzoic acidHCID 81531DiisopropylethylamineHCID 27375314-Amino-1-methylpiperidine

생성물 1

HCID 580150334-amino-3-chloro-N-(1-methyl-4-piperidyl)benzamide수율 0.1%

시약·촉매·용매 2

HCID 6228Dimethylformamide용매2회HCID 10340Sodium Carbonate용매

실험 절차

To a solution of 1.0 g (5.9 mole) of 4-amino-3-chlorobenzoic acid, 0.8 g (7.0 mole) of 4-amino-1-methyl-piperidine and 4.14 mL (23 mmole) of ethyldiisopropyl amine in 20 mL of dimethylformamide was added a solution of 2.4 g (6.4 mole) of 1-(di-1-pyrrolidinylmethylene)-1H-benzotriazolium 3-oxide hexafluorophosphate in 5 mL of dimethylformamide. The mixture was stirred at room temperature for 2 hours, then diluted with ice water and saturated sodium carbonate. The mixture was extracted with ethyl acetate twice. The combined organic layers were washed three times with sodium carbonate, three times with brine, dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure. Purification by silica gel chromatography, eluting with dichloromethane-methanol (gradient, 100:0-60:40) gave 1.41 g of 4-amino-3-chloro-N-(1-methyl-piperidin-4-yl)-benzamide as a solid.

후처리

  1. extractionThe mixture was extracted with ethyl acetate twice
  2. washThe combined organic layers were washed three times with sodium carbonate, three times with brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customPurification by silica gel chromatography
  7. washeluting with dichloromethane-methanol (gradient, 100:0-60:40)

출처 및 근거

ORD 기록
ord-b7512b0f5104436c920a7cd4d112d07f
출처 데이터셋
uspto-grants-2011_08
특허 번호
US08003785B2

연결된 노트

불러오는 중…