Triphenylphosphine → methyl (Z)-[4-[3-(4-iodophenyl)-3-[4-(trifluoromethyl-sulfanyl)phenyl]allyloxy]-2-methyl-phenoxy]-acetate

HRID 549896Notes

Reaction equation

[I:1][C:2]1[CH:7]=[CH:6][C:5](/[C:8](/[C:12]2[CH:17]=[CH:16][C:15]([S:18][C:19]([F:22])([F:21])[F:20])=[CH:14][CH:13]=2)=[CH:9]\[CH2:10][OH:11])=[CH:4][CH:3]=1.[CH3:23][C:24]1[CH:34]=[C:33](OC/C=C(/C2C=CC(C#CCN3CCOCC3)=CC=2)\C2C=CC=CC=2)[CH:32]=[CH:31][C:25]=1[O:26][CH2:27][C:28]([OH:30])=[O:29].[C:60]1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OC(C)C)=O)=NC(OC(C)C)=O>C1(C)C=CC=CC=1.O1CCCC1>[I:1][C:2]1[CH:7]=[CH:6][C:5](/[C:8](/[C:12]2[CH:17]=[CH:16][C:15]([S:18][C:19]([F:22])([F:20])[F:21])=[CH:14][CH:13]=2)=[CH:9]\[CH2:10][O:11][C:33]2[CH:32]=[CH:31][C:25]([O:26][CH2:27][C:28]([O:30][CH3:60])=[O:29])=[C:24]([CH3:23])[CH:34]=2)=[CH:4][CH:3]=1

Participants

Conditions

Temperature: 0 °C

Procedure

The above allyl alcohol (1.09 g, 2.4 mmol), methyl (4-hydroxy-2-methylphenoxy)acetate (0.549 g, 27.9 mmol; example 2) and triphenylphosphine (0.755 g, 28.8 mmol) were dissolved in a mixture of anhydrous toluene (20 mL) and tetrahydrofuran (10 mL). The mixture was cooled to 0° C., kept under argon and a degassed solution of diisopropyl azodicarboxylate (0.56 mL, 28.8 mmol) in anhydrous tetrahydrofuran (5 mL) was added dropwise during 30 min. The reaction mixture was allowed to warm up the ambient temperature with the bath and then was stirred for 5 h. The solvents were evaporated in vacuo and the residue was submitted to flash column chromatography (silica gel Fluka 60, hexanes/ethyl acetate 10:1) affording methyl (Z)-[4-[3-(4-iodophenyl)-3-[4-(trifluoromethyl-sulfanyl)phenyl]allyloxy]-2-methylphenoxy]acetate as solid mass.

Workup

temperatureto warm up the ambient temperature with the bath
customThe solvents were evaporated in vacuo

Sources & evidence

ORD record: ord-63f23bbf233c40fdb5c88d9f4a4ceb7a
Source dataset: uspto-grants-2011_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07943613B2

Reaction notes

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