Acrylonitrile → 3-(4,4-Diphenylpiperidin-1-yl)propionitrile

HRID 322109Notes

Reaction equation

HRID 322109 reaction equation
Cl.[C:2]1([C:8]2([C:14]3[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=3)[CH2:13][CH2:12][NH:11][CH2:10][CH2:9]2)[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.CCN(CC)CC.[C:27](#[N:30])[CH:28]=[CH2:29]>CCO>[C:2]1([C:8]2([C:14]3[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=3)[CH2:9][CH2:10][N:11]([CH2:29][CH2:28][C:27]#[N:30])[CH2:12][CH2:13]2)[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

5

Reactant 3

HCID 7855AcrylonitrileHCID 8471TriethylamineHCID 30475044,4-Diphenylpiperidine hydrochloride

Product 1

HCID 155128643-(4,4-Diphenylpiperidin-1-yl)propionitrileYield 87%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

To a suspension of 4,4-diphenylpiperidine hydrochloride (195 mg, 0.712 mmol, 1.0 equiv) in EtOH (1.5 mL) was added Et3N (0.25 mL, 1.8 mmol, 2.6 equiv) followed by acrylonitrile (0.13 mL, 2.01 mmol, 2.8 equiv). The resulting solution was stirred at room temperature under argon for 15 minutes and then concentrated. Water was added, and the mixture was extracted three times with EtOAc. The combined organic extracts were dried over MgSO4 and concentrated to give 170 mg (87%) of tan solid, which was characterized spectroscopically and used for the next reaction without purification.

Workup

  1. concentrationconcentrated
  2. additionWater was added
  3. extractionthe mixture was extracted three times with EtOAc
  4. dry with materialThe combined organic extracts were dried over MgSO4
  5. concentrationconcentrated

Sources & evidence

ORD record
ord-b392b149ed784682a6a36d263ab89590
Source dataset
uspto-grants-2001_04
Patent number
US06211198B1

Reaction notes

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