4-Cyanophenol → 4-(2-Morpholin-4-ylethoxy)benzonitrile

HRID 1456033Notes

Reaction equation

[C:1]([C:3]1[CH:8]=[CH:7][C:6]([OH:9])=[CH:5][CH:4]=1)#[N:2].[H-].[Na+].Cl[CH2:13][CH2:14][N:15]1[CH2:20][CH2:19][O:18][CH2:17][CH2:16]1>CN(C=O)C>[N:15]1([CH2:14][CH2:13][O:9][C:6]2[CH:7]=[CH:8][C:3]([C:1]#[N:2])=[CH:4][CH:5]=2)[CH2:20][CH2:19][O:18][CH2:17][CH2:16]1

Participants

Conditions

Temperature: 0 °C

Procedure

To a solution of 4-cyanophenol (5.95 g, 0.05 mol) in DMF (35 mL) at 0° C. was added 60% NaH (2.2 g, 0.055 mol). The reaction mixture was stirred at 0° C. for 15 minutes, then at room temperature for 15 minutes and then N-(2-chloroethyl)morpholine (prepared from 11.16 g, 0.06 mol of the hydrochloride salt) was added and the reaction mixture was stirred at room temperature for about 2 days. There was still a small amount of starting material present so the reaction mixture was heated on a steam bath for 4 hours. The reaction mixture was cooled to room temperature and then the solvent was removed. Ice-water was added to the residue and the solid which precipitated was collected by filtration and dried to afford 11.3 g (97%) of 4-[2-(4-morpholinyl)ethoxy]benzonitrile.

Workup

waitat room temperature for 15 minutes
additionwas added
stirringthe reaction mixture was stirred at room temperature for about 2 days
temperaturewas heated on a steam bath for 4 hours
temperatureThe reaction mixture was cooled to room temperature
customthe solvent was removed
additionIce-water was added to the residue
customthe solid which precipitated
filtrationwas collected by filtration
customdried

Sources & evidence

ORD record: ord-a3a805cc51d742538c8ab37f023f135e
Source dataset: uspto-grants-1998_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US05843956

Reaction notes

Loading…