Sodium Methoxide → o-Phenylbenzoic acid

HRID 1251031노트

반응식

HRID 1251031 반응식
Cl[C:2]1[CH:3]=[C:4]([C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)[CH:5]([C:8]([O:10][CH2:11][CH3:12])=[O:9])[CH2:6][CH:7]=1.Cl[C:20]1[CH2:25][CH2:24][C:23]([C:26]([O:28]CC)=[O:27])=[C:22]([C:31]2[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=2)[CH:21]=1.C[O-].[Na+]>CO>[C:13]1([C:4]2[CH:3]=[CH:2][CH:7]=[CH:6][C:5]=2[C:8]([O:10][CH2:11][CH3:12])=[O:9])[CH:14]=[CH:15][CH:16]=[CH:17][CH:18]=1.[C:31]1([C:22]2[CH:21]=[CH:20][CH:25]=[CH:24][C:23]=2[C:26]([OH:28])=[O:27])[CH:32]=[CH:33][CH:34]=[CH:35][CH:36]=1

참가 물질

6

반응물 3

HCID 10942334Sodium MethoxideHCID 10967324HCID 10967324, 화합물HCID 11043594HCID 11043594, 화합물

생성물 2

HCID 70357o-Phenylbenzoic acid수율 53.8%HCID 9920952Ethyl 2-phenylbenzoate수율 23.7%

시약·촉매·용매 1

HCID 887Methanol용매

실험 절차

To a stirred solution of a mixture(620 mg, 2.54 mmol) of ethyl 4-chloro-2-phenylcyclohexa-2,4-dienecarboxylate and ethyl 4-chloro-2-phenylcyclohexa-1,3-dienecarboxylate in MeOH(5 ml), NaOMe(28% in MeOH, 1.98 g, 10.1 mmol) was added. After stirring for 17 hr at room temperature, the solvent was evaporated under reduced pressure. Water was added to the residue and dil. HCl aq., and it was extracted with AcOEt. The organic layer was washed with brine and dried over MgSO4. After removal of the solvent, the residue was purified by column chromatography on silica gel with n-hexane-AcOEt to afford 136 mg of ethyl 2-phenylbenzoate(y=23.7%) and 236 mg of 2-phenylbenzoic acid(y=53.8%). 1H-NMR(ppm, 300 MHz, CDCl3) δ ester 7.82(1H, dd, J=1.4 and 7.7 Hz), 7.10-7.60(8H), 4.08(2H, d, J=7.0 Hz), 0.98(3H, t, J=7.0 Hz); acid 7.95(1H, d, J=7.9 Hz).

후처리

  1. customthe solvent was evaporated under reduced pressure
  2. additionWater was added to the residue and dil. HCl aq., and it
  3. extractionwas extracted with AcOEt
  4. washThe organic layer was washed with brine
  5. dry with materialdried over MgSO4
  6. customAfter removal of the solvent
  7. customthe residue was purified by column chromatography on silica gel with n-hexane-AcOEt

출처 및 근거

ORD 기록
ord-ff111a659b9b44959a78918df1ff6e7d
출처 데이터셋
uspto-grants-2002_01
특허 번호
US06340772B1

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