Ethyl diazoacetate → (2-Phenoxy)ethoxyacetic Acid Ethyl Ester

HRID 2053611

반응식

HRID 2053611 반응식
[O:1]([CH2:8][CH2:9][OH:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[N+](=[CH:13][C:14]([O:16][CH2:17][CH3:18])=[O:15])=[N-]>ClCCl.CCCCCCC.CC(O)=O.CC(O)=O.CC(O)=O.CC(O)=O.[Rh].[Rh]>[CH2:17]([O:16][C:14](=[O:15])[CH2:13][O:10][CH2:9][CH2:8][O:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1)[CH3:18]

참가 물질

6

반응물 2

HCID 12192Ethyl diazoacetateHCID 31236Phenoxyethanol

생성물 1

HCID 33787264(2-Phenoxy)ethoxyacetic Acid Ethyl Ester수율 82.8%

시약·촉매·용매 3

HCID 423677Acetic acid, rhodium salt (4:2)촉매HCID 6344Dichloromethane용매HCID 8900Heptane용매

실험 절차

To a solution of 2-phenoxyethan-1-ol (1.5 mL, 12.7 mmol) in dichloromethane (50 mL) is added rhodium (II) acetate dimer (10 mg) followed by ethyl diazoacetate (1.1 mL, 10.5 mmol). The reaction mixture is stirred at rt overnight. The reaction mixture is diluted with heptane, and filtered. The filtrate is evaporated, and the residue vacuum distilled to give 1.95 g of the product 440. 1H NMR (CDCl3) δ 7.40-7.25 (m, 2H), 7.10-6.90 (m, 3H), 4.30-4.15 (m, 5H), 4.15-4.05 (m, 1H), 4.05-3.90 (s, 2H), 1.28 (t, 3H)

후처리

  1. filtrationfiltered
  2. customThe filtrate is evaporated
  3. distillationthe residue vacuum distilled

출처 및 근거

ORD 기록
ord-d6f55f5ffb6a416888dd3964d6aa3c44
출처 데이터셋
uspto-grants-2008_02
특허 번호
US07326792B2

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