1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → 2-(4-chloro-3-methoxyphenyl)-N-methoxy-N,2-dimethylpropanamide

HRID 1627342노트

반응식

HRID 1627342 반응식
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]([CH3:13])([CH3:12])[C:9]([OH:11])=O)=[CH:4][C:3]=1[O:14][CH3:15].Cl.[CH3:17][NH:18][O:19][CH3:20].CCN=C=NCCCN(C)C>C(Cl)Cl.CN(C1C=CN=CC=1)C>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]([CH3:13])([CH3:12])[C:9]([N:18]([O:19][CH3:20])[CH3:17])=[O:11])=[CH:4][C:3]=1[O:14][CH3:15]

참가 물질

6

반응물 3

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 81138Methanamine, N-methoxy-, hydrochloride (1:1)HCID 667403622-(4-Chloro-3-methoxyphenyl)-2-methylpropanoic acid

생성물 1

HCID 866622432-(4-chloro-3-methoxyphenyl)-N-methoxy-N,2-dimethylpropanamide수율 96%

시약·촉매·용매 2

HCID 142844-(Dimethylamino)pyridine촉매HCID 6344Dichloromethane용매

실험 절차

To a solution of 2-(4-chloro-3-methoxyphenyl)-2-methylpropanoic acid (15) (268 g, 1.17 mol) in CH2Cl2 (1.7 L) was added N,O-dimethylhydroxylamine hydrochloride (137 g, 1.4 mol), EDCI (270 g, 1.4 mol), and DMAP (172 g, 1.4 mol). The resulting mixture was stirred for 3 h and washed with 10% citric acid solution (1.5 L), satd NaHCO3 (1.5 L), and brine (1.5 L) successfully. The organic phase was dried over MgSO4, filtered, and concentrated at reduced pressure to afford 2-(4-chloro-3-methoxyphenyl)-N-methoxy-N,2-dimethylpropanamide (16) as a brown solid (276 g, 96%). 1H NMR (400 MHz, CDCl3): δ 7.30-7.32 (d, 1H), 6.81-6.84 (m, 3H), 3.89 (s, 3H), 3.12 (s, 3H), 2.78 (s, 3H), 1.53 (s, 6H).

후처리

  1. washwashed with 10% citric acid solution (1.5 L), satd NaHCO3 (1.5 L), and brine (1.5 L) successfully
  2. dry with materialThe organic phase was dried over MgSO4
  3. filtrationfiltered
  4. concentrationconcentrated at reduced pressure

출처 및 근거

ORD 기록
ord-c9cbd86d7bdd421d9f34f5365dd4f76a
출처 데이터셋
uspto-grants-2014_07
특허 번호
US08785488B2

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