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

HRID 2083318Notes

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 magnesium 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 magnesium sulfate
concentrationconcentrated in vacuo

Sources & evidence

ORD record: ord-ef18091e6ec5448593b258108a8be1a0
Source dataset: uspto-grants-1978_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US04085125

Reaction notes

Loading…