Aluminium lithium hydride → 3-Allyloxycarbonylamino-4-oxo-butyric acid tert-butyl ester

HRID 891214노트

반응식

HRID 891214 반응식
[C:1]([O:5][C:6](=[O:22])[CH2:7][CH:8]([NH:15][C:16]([O:18][CH2:19][CH:20]=[CH2:21])=[O:17])[C:9](N(OC)C)=[O:10])([CH3:4])([CH3:3])[CH3:2].[H-].[Al+3].[Li+].[H-].[H-].[H-]>C1COCC1.CCOCC>[C:1]([O:5][C:6](=[O:22])[CH2:7][CH:8]([NH:15][C:16]([O:18][CH2:19][CH:20]=[CH2:21])=[O:17])[CH:9]=[O:10])([CH3:2])([CH3:4])[CH3:3]

참가 물질

5

반응물 2

HCID 21226445Aluminium lithium hydrideHCID 235987113-allyloxycarbonylamino-N-methoxy-N-methyl-succinamic acid tert-butyl ester

생성물 1

HCID 184657153-Allyloxycarbonylamino-4-oxo-butyric acid tert-butyl ester수율 91%

시약·촉매·용매 2

HCID 3283Diethyl Ether용매HCID 8028Tetrahydrofuran용매

실험 절차

A solution of 3-allyloxycarbonylamino-N-methoxy-N-methyl-succinamic acid tert-butyl ester, 101, (24.3 g, 76.8 mmol) in THF (60 mL) is treated at −78° C. with lithium aluminum hydride (1 M in THF, 39 mL, 39 mmol) dissolved in ether (200 mL) over 5 minutes. After the consumption of starting material, the solution is cautiously quenched with 1.0 N HCl, washed with 1.0 N HCl (2×100 mL) and brine (1×150 mL). The organic layer is concentrated in vacuo to afford 18.2 g (91% yield) of the desired product as a clear oil.

후처리

  1. customAfter the consumption of starting material
  2. customthe solution is cautiously quenched with 1.0 N HCl
  3. washwashed with 1.0 N HCl (2×100 mL) and brine (1×150 mL)
  4. concentrationThe organic layer is concentrated in vacuo

출처 및 근거

ORD 기록
ord-d199b16db69f46c8bba35e298a22df3e
출처 데이터셋
uspto-grants-2006_02
특허 번호
US07001899B2

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