Dimethyl Sulfoxide → Methyl 8-methylsulfonyl-12-acetoxy-13-(3-trifluoromethylphenoxy)tridecanoate

HRID 328801Notes

Reaction equation

[CH3:1][S:2]([C:5](C(OC)=O)([CH2:16][CH2:17][CH2:18][CH:19]([O:32][C:33](=[O:35])[CH3:34])[CH2:20][O:21][C:22]1[CH:27]=[CH:26][CH:25]=[C:24]([C:28]([F:31])([F:30])[F:29])[CH:23]=1)[CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][C:12]([O:14][CH3:15])=[O:13])(=[O:4])=[O:3].[Cl-].[Na+].CS(C)=O>O>[CH3:1][S:2]([CH:5]([CH2:16][CH2:17][CH2:18][CH:19]([O:32][C:33](=[O:35])[CH3:34])[CH2:20][O:21][C:22]1[CH:27]=[CH:26][CH:25]=[C:24]([C:28]([F:31])([F:29])[F:30])[CH:23]=1)[CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][C:12]([O:14][CH3:15])=[O:13])(=[O:3])=[O:4]

Participants

Conditions

Temperature: 185 °C

Procedure

A mixture of methyl 8-methylsulfonyl-8-methoxycarbonyl-12-acetoxy-13-(3-trifluoromethylphenoxy)tridecanoate (5.82 g., 0.01 mole), sodium chloride (0.59 g., 0.01 mole), dimethylsulfoxide (8 ml.), and water (0.2 ml.) is heated in an oil bath at 185° C. for 10 hours under nitrogen. The reaction mixture is then concentrated in vacuo on a steam bath. The dark-colored residue is diluted with water, acidified with 6N hydrochloric acid, and extracted with ether. The ether extracts are washed with water, dried with anhydrous magensium sulfate, and concentrated in vacuo to give the title compound (9.90 g., 0.019 mole, 94%).

Workup

concentrationThe reaction mixture is then concentrated in vacuo on a steam bath
additionThe dark-colored residue is diluted with water
extractionextracted with ether
washThe ether extracts are washed with water
dry with materialdried with anhydrous magensium sulfate
concentrationconcentrated in vacuo

Sources & evidence

ORD record: ord-d9edf7db857c4561a3f20a10b38f991f
Source dataset: uspto-grants-1977_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US04018802

Reaction notes

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