Reaction equation
[C:1]1([C:9]2[C:10]([CH2:15][OH:16])=[CH:11][CH:12]=[CH:13][CH:14]=2)[C:2]([CH2:7][OH:8])=[CH:3][CH:4]=[CH:5][CH:6]=1.N1C=C[CH:20]=[CH:19][CH:18]=1.[C:23](Cl)(=[O:30])[C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1.[O:32]1[CH2:36][CH2:35][CH2:34][CH2:33]1>>[C:23]([O:16][CH2:15][C:10]1[C:9]([C:1]2[C:2]([CH2:7][O:8][C:36](=[O:32])[C:35]3[CH:20]=[CH:19][CH:18]=[CH:33][CH:34]=3)=[CH:3][CH:4]=[CH:5][CH:6]=2)=[CH:14][CH:13]=[CH:12][CH:11]=1)(=[O:30])[C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1Participants
5
Procedure
To 0.03 mol 2,2′-biphenyldimethanol was added 30 ml tetrahydrofuran and 0.09 mol pyridine, then added 0.075 mol benzoyl chloride with stirring. The reaction mixture was heated refluxing for 4 hours, cooled and added 20 ml saturated saline. The mixture was extracted with ethyl acetate, and extract was dried over anhydrous sodium sulfate. The solvent was removed. Column chromatography gave 2,2′-biphenyldimethanol dibenzoate as a colorless viscous liquid, and the yield was 93%.
Workup
- temperatureThe reaction mixture was heated
- temperaturerefluxing for 4 hours
- temperaturecooled
- additionadded 20 ml saturated saline
- extractionThe mixture was extracted with ethyl acetate
- extractionextract
- dry with materialwas dried over anhydrous sodium sulfate
- customThe solvent was removed
Sources & evidence
- ORD record
- ord-95eff78e70df4997a65f9cd5b2102bbd
- Source dataset
- uspto-grants-2008_06
- Patent number
- US07388061B2
Linked notes
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