Triphenylphosphine → methyl (Z)-[4-[3-(4-tert-butylphenyl)-3-(4-iodophenyl)allyloxy]-2-methylphenoxy]acetate

HRID 549859Notes

Reaction equation

[C:1]([C:5]1[CH:10]=[CH:9][C:8](/[C:11](/[C:15]2[CH:20]=[CH:19][C:18]([I:21])=[CH:17][CH:16]=2)=[CH:12]/[CH2:13][OH:14])=[CH:7][CH:6]=1)([CH3:4])([CH3:3])[CH3:2].[CH3:22][C:23]1[CH:33]=[C:32](OC/C=C(/C2C=CC(C#CCN3CCOCC3)=CC=2)\C2C=CC=CC=2)[CH:31]=[CH:30][C:24]=1[O:25][CH2:26][C:27]([OH:29])=[O:28].[C:59]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>[C:1]([C:5]1[CH:10]=[CH:9][C:8](/[C:11](/[C:15]2[CH:20]=[CH:19][C:18]([I:21])=[CH:17][CH:16]=2)=[CH:12]/[CH2:13][O:14][C:32]2[CH:31]=[CH:30][C:24]([O:25][CH2:26][C:27]([O:29][CH3:59])=[O:28])=[C:23]([CH3:22])[CH:33]=2)=[CH:7][CH:6]=1)([CH3:4])([CH3:2])[CH3:3]

Participants

Conditions

Temperature: 0 °C

Procedure

The above allyl alcohol (2.46 g, 6.27 mmol), methyl (4-hydroxy-2-methylphenoxy)acetate (1.35 g, 6.88 mmol; example 2) and triphenylphosphine (1.97 g, 7.51 mmol) were dissolved in a mixture of anhydrous toluene (135 mL) and tetrahydrofuran (45 mL). The mixture was cooled to 0° C., kept under nitrogen and a degassed solution of diisopropyl azodicarboxylate (1.5 mL, 7.57 mmol) in anhydrous tetrahydrofuran (15 mL) was added dropwise during 30 min. The reaction mixture was allowed to warm up the ambient temperature with the bath and then stirred over night. The solvents were evaporated in vacuo and the residue was submitted to flash column chromatography (silica gel Fluka 60, hexanes/ethyl acetate 12:1-10:1) affording methyl (Z)-[4-[3-(4-tert-butylphenyl)-3-(4-iodophenyl)allyloxy]-2-methylphenoxy]acetate as yellow oil.

Workup

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

Sources & evidence

ORD record: ord-43fb714dbc724824bb280476291d7b4b
Source dataset: uspto-grants-2011_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07943613B2

Reaction notes

Loading…