Acetic Acid → 1-(Diphenylmethyl)-3-(methylamino)-3-azetidinecarbonitrile

HRID 915843Notes

Reaction equation

HRID 915843 reaction equation
[CH:1]([N:14]1[CH2:17][C:16](=O)[CH2:15]1)([C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.Cl.[CH3:20][NH2:21].C(O)(=O)C.[C-:26]#[N:27].[K+]>CO>[CH:1]([N:14]1[CH2:17][C:16]([NH:27][CH3:26])([C:20]#[N:21])[CH2:15]1)([C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

6

Reactant 4

HCID 176Acetic AcidHCID 9032Potassium CyanideHCID 37355581-(Diphenylmethyl)azetidin-3-oneHCID 6364545Methylamine hydrochloride

Product 1

HCID 219057751-(Diphenylmethyl)-3-(methylamino)-3-azetidinecarbonitrile

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Conditions

Temperature
60 °C

Procedure

To a solution of 1-benzhydrylazetidin-3-one (2.13 g, 8.98 mmol) in methanol (17 ml) was added methylamine hydrochloride (1.21 g, 18.0 mmol) and then acetic acid (1.03 ml, 18.0 mmol) at room temperature. After stirring for 5 minutes, solid KCN (1.17 g, 18.0 mmol) was added and the mixture was heated to 60° C. for 19 hours. The reaction was cooled; the solid product was collected by vacuum filtration, rinsed with methanol, and then dried, in vacuo, to afford I-2A-69a as a colorless solid (2.50 g, quantitative): +ESI MS (M+1) 278.3; 1H NMR (400 MHz, CD2Cl2) δ 7.43 (d, J=7.5 Hz, 4H), 7.29 (t, J=7.5 Hz, 4H), 7.23 (t, J=7.3 Hz, 2H), 4.45 (s, 1H), 3.55 (d, J=7.5 Hz, 2H), 3.15 (d, J=7.1 Hz, 2H), 2.40 (s, 3H).

Workup

  1. customat room temperature
  2. temperatureThe reaction was cooled
  3. filtrationthe solid product was collected by vacuum filtration
  4. washrinsed with methanol
  5. customdried, in vacuo
  6. customto afford I-2A-69a as a colorless solid (2.50 g, quantitative)

Sources & evidence

ORD record
ord-3b3e2b5f1cfc43efa57392e9f370fa48
Source dataset
uspto-grants-2007_09
Patent number
US07268133B2

Reaction notes

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