Water → (1-Benzylpiperidin-4-yl)-(1,3-dihydroisobenzofuran-1-yl)methanol

HRID 606201

Reaction equation

[CH2:1]1[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[CH2:3][O:2]1.[CH2:10]([N:17]1[CH2:22][CH2:21][CH:20]([CH:23]=[O:24])[CH2:19][CH2:18]1)[C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1.O.C(OCC)(=O)C>O1CCCC1.C([Li])CCC>[CH2:10]([N:17]1[CH2:22][CH2:21][CH:20]([CH:23]([CH:1]2[C:9]3[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=3)[CH2:3][O:2]2)[OH:24])[CH2:19][CH2:18]1)[C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1

Participants

Conditions

Temperature: -70 °C

Procedure

After dissolving 591 mg of 1,3-dihydroisobenzofuran in 10 ml of tetrahydrofuran, 3.9 ml of n-butyllithium (1.5 M, n-hexane solution) was added thereto at −70° C. under a nitrogen atmosphere, the mixture was stirred for 1 hour, and then a solution of 1 g of 1-benzylpiperidine-4-carboxaldehyde in tetrahydrofuran (5 ml) was added dropwise and the mixture was stirred for 1 hour. Water was added to the reaction solution, extraction was performed with ethyl acetate, the extract was dried over anhydrous magnesium sulfate, and then the solvent was distilled off under reduced pressure. Purification was performed by silica gel column chromatography (solvent: n-hexane/ethyl acetate) to obtain 597 mg of (1-benzylpiperidin-4-yl)-(1,3-dihydroisobenzofuran-1-yl)methanol.

Workup

additionwas added
stirringthe mixture was stirred for 1 hour
dry with materialthe extract was dried over anhydrous magnesium sulfate
distillationthe solvent was distilled off under reduced pressure
customPurification

Sources & evidence

ORD record: ord-3cdf1cd5e0934747a1a5feee8f3dbe3e
Source dataset: uspto-grants-2011_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07915274B2

Linked notes

Loading…