Salicylic Acid → Benzyl 3-(2-hydroxybenzamido)butan-2-ylcarbamate

HRID 85383

반응식

HRID 85383 반응식
[NH2:1][CH:2]([CH3:16])[CH:3]([NH:5][C:6](=[O:15])[O:7][CH2:8][C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1)[CH3:4].[OH:17][C:18]1[CH:26]=[CH:25][CH:24]=[CH:23][C:19]=1[C:20](O)=[O:21].N1C=CN=C1.C1CCC(N=C=NC2CCCCC2)CC1>CCOC(C)=O>[OH:17][C:18]1[CH:26]=[CH:25][CH:24]=[CH:23][C:19]=1[C:20]([NH:1][CH:2]([CH3:16])[CH:3]([NH:5][C:6](=[O:15])[O:7][CH2:8][C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1)[CH3:4])=[O:21]

참가 물질

6

반응물 4

HCID 338Salicylic AcidHCID 795ImidazoleHCID 10868DicyclohexylcarbodiimideHCID 59193262Benzyl 3-aminobutan-2-ylcarbamate

생성물 1

HCID 67174902Benzyl 3-(2-hydroxybenzamido)butan-2-ylcarbamate수율 40%

시약·촉매·용매 1

HCID 8857Ethyl Acetate용매2회

실험 절차

To a mixture of benzyl 3-aminobutan-2-ylcarbamate (5.3 g, 23.8 mmol), 2-hydroxybenzoic acid (3.28 g, 23.8 mmol) and imidazole (1.62 g, 23.8 mmol) in EtOAc (180 mL) at 0° C. was slowly added a solution of DCC (4.90 g, 23.8 mmol) in EtOAc (20 mL). The reaction mixture was stirred (RT, 16 h), filtered and concentrated under reduced pressure. The crude product was purified by column chromatography on silica gel, eluting with PE-EtOAc (5:1) to afford benzyl 3-(2-hydroxybenzamido)butan-2-ylcarbamate (3.2 g, 40%) as a colorless oil. Mass calculated for C19H22N2O4=342.39; found: [M+H]+=343.2.

후처리

  1. filtrationfiltered
  2. concentrationconcentrated under reduced pressure
  3. customThe crude product was purified by column chromatography on silica gel
  4. washeluting with PE-EtOAc (5:1)

출처 및 근거

ORD 기록
ord-38642b5744a5467297104ac57dccd354
출처 데이터셋
uspto-grants-2014_09
특허 번호
US08846972B2

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