Dimethyl Sulfide → HCID 12085536, compound

HRID 1982812Notes

Reaction equation

HRID 1982812 reaction equation
C([O:8][C:9]1[CH:28]=[CH:27][CH:26]=[CH:25][C:10]=1[CH2:11][C:12]1[CH:17]=[CH:16][C:15](/[CH:18]=[CH:19]/[C:20]([O:22][CH2:23][CH3:24])=[O:21])=[CH:14][CH:13]=1)C1C=CC=CC=1.FC(F)(F)C(O)=O.CSC>O>[OH:8][C:9]1[CH:28]=[CH:27][CH:26]=[CH:25][C:10]=1[CH2:11][C:12]1[CH:13]=[CH:14][C:15](/[CH:18]=[CH:19]/[C:20]([O:22][CH2:23][CH3:24])=[O:21])=[CH:16][CH:17]=1

Participants

5

Reactant 3

HCID 1068Dimethyl SulfideHCID 6422Trifluoroacetic acidHCID 12085535HCID 12085535, compound

Product 1

HCID 12085536HCID 12085536, compoundYield 78.2%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

To a solution of triethyl phosphonoacetate (0.89 mL) in tetrahydrofuran (30 mL) was added potassium tert-butoxide (0.50 g), and the mixture was stirred at room temperature for 15 minutes. A solution of 4-(2-benzyloxybenzyl)benzaldehyde (1.0 g) in tetrahydrofuran (10 mL) was added to the reaction mixture, and the mixture was stirred at room temperature for 6 hours. To the resulting mixture was added dilute hydrochloric acid, and the mixture was extracted with ethyl acetate. The organic layer was washed with brine and dried over anhydrous magnesium sulfate, and the solvent was removed under reduced pressure. The residue was purified by column chromatography on silica gel (eluent: hexane/ethyl acetate=10/1) to give ethyl (E)-3-[4-(2-benzyl-oxybenzyl)phenyl]acrylate (0.86 g). To the obtained ethyl (E)-3-[4-(2-benzyloxybenzyl)phenyl]acrylate (0.86 g) were added trifluoroacetic acid (9.5 mL), water (0.5 mL) and dimethyl sulfide (1.0 mL), and the mixture was stirred at room temperature overnight. The solvent was removed under reduced pressure, and the residue was purified by column chromatography on silica gel (eluent: hexane/ethyl acetate=3/1) to give ethyl (E)-3-[4-(2-hydroxybenzyl)phenyl]acrylate (0.51 g).

Workup

  1. customThe solvent was removed under reduced pressure
  2. customthe residue was purified by column chromatography on silica gel (eluent: hexane/ethyl acetate=3/1)

Sources & evidence

ORD record
ord-2e84cb62948a4b5a93905ecf898fd454
Source dataset
uspto-grants-2009_06
Patent number
US07541341B2

Reaction notes

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