Triphenylphosphine → Methyl (e)-[4-[3-(4-iodophenyl)-3-(6-phenylpyridin-3-yl)allyloxy]-2-methylphenoxy]acetate

HRID 549863Notes

Reaction equation

[I:1][C:2]1[CH:7]=[CH:6][C:5](/[C:8](/[C:12]2[CH:13]=[N:14][C:15]([C:18]3[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=3)=[CH:16][CH:17]=2)=[CH:9]\[CH2:10][OH:11])=[CH:4][CH:3]=1.[CH3:24][C:25]1[CH:35]=[C:34](OC/C=C(/C2C=CC(C#CCN3CCOCC3)=CC=2)\C2C=CC=CC=2)[CH:33]=[CH:32][C:26]=1[O:27][CH2:28][C:29]([OH:31])=[O:30].[C:61]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:13]=[N:14][C:15]([C:18]3[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=3)=[CH:16][CH:17]=2)=[CH:9]\[CH2:10][O:11][C:34]2[CH:33]=[CH:32][C:26]([O:27][CH2:28][C:29]([O:31][CH3:61])=[O:30])=[C:25]([CH3:24])[CH:35]=2)=[CH:4][CH:3]=1

Participants

Conditions

Temperature: 0 °C

Procedure

The above allyl alcohol (238 mg, 0.0.65 mmol), methyl (4-hydroxy-2-methylphenoxy)acetate (140 mg, 0.715 mmol; example 2) and triphenylphosphine (205 mg, 0.78 mmol) were dissolved in a mixture of anhydrous toluene (8 mL) and tetrahydrofuran (6 mL). The mixture was cooled to 0° C., kept under argon and a degassed solution of diisopropyl azodicarboxylate (0.163 mL, 0.78 mmol) in anhydrous tetrahydrofuran (1 mL) was added dropwise during 10 min. The reaction mixture was allowed to warm up to ambient temperature with the bath and then was stirred for 3 days. The solvents were evaporated in vacuo and the residue was submitted to flash column chromatography (silica gel Fluka 60, hexanes/ethyl acetate 85:15) affording methyl (E)-[4-[3-(4-iodophenyl)-3-(6-phenylpyridin-3-yl)allyloxy]-2-methylphenoxy]acetate as oil.

Workup

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

Sources & evidence

ORD record: ord-286d7daad0644c2c80bdcf3f8c4c7981
Source dataset: uspto-grants-2011_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07943613B2

Reaction notes

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