Hydrochloric Acid → F 1893

HRID 2053686

반응식

HRID 2053686 반응식
C[O:2][C:3]([C:5]1[CH:10]=[CH:9][C:8]([C:11]2[CH:16]=[CH:15][CH:14]=[CH:13][C:12]=2[Cl:17])=[CH:7][CH:6]=1)=[O:4].[OH-].[Na+].Cl>C1COCC1>[Cl:17][C:12]1[CH:13]=[CH:14][CH:15]=[CH:16][C:11]=1[C:8]1[CH:9]=[CH:10][C:5]([C:3]([OH:4])=[O:2])=[CH:6][CH:7]=1

참가 물질

5

반응물 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 1393555Methyl 2'-chloro-1,1'-biphenyl-4-carboxylate

생성물 1

HCID 160722F 1893수율 67%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

실험 절차

Combine methyl-4-bromobenzoate (1.0 g, 4.65 mmol), 2-chlorophenylboronic acid (799 mg, 5.1 mmol), Pd(OAc)2 (51 mg, 0.46 mmol) and sodium carbonate (1.5 g, 13.9 mmol) in DMF (20 mL) and water (2.0 mL) with stirring. Purge the reaction mixture with argon, add triphenylphosphine (61 mg, 0.23 mmol) and purge again with argon. Place the sealed reaction in an oil bath maintained at 80° C. and allow to stir for 1 hour. Cool the reaction to room temperature, dilute with ethyl acetate and filter through a short plug of celite with additional ethyl acetate. Wash the organics with water, dry over MgSO4, filter and evaporate. Purification by flash column chromatography yields 2′-chlorobiphenyl-4-carboxylic acid methyl ester as a yellow solid. Dissolve the purified ester in THF (0.25M) and add an equal volume of 1M NaOH. Stir vigorously at room temperature for 15 hours. Upon completion, acidify the reaction with conc. HCl and extract with ethyl acetate. Evaporation of the solvent yields 762 mg (67%) of the title compound. MS (m/e): 231.1 (M−).

후처리

  1. extractionextract with ethyl acetate
  2. customEvaporation of the solvent

출처 및 근거

ORD 기록
ord-1fef3cad33d04263a8a4170fa5a63e5d
출처 데이터셋
uspto-grants-2008_02
특허 번호
US07326731B2

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