Nitromethane → HCID 57550257, compound

HRID 548629Notes

Reaction equation

HRID 548629 reaction equation
[CH2:1]([N:8]1[CH2:12][CH2:11][C:10](=[CH:13][C:14]([O:16][CH3:17])=[O:15])[CH2:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.N12CCCN=C1CCCCC2.[N+:29]([CH3:32])([O-:31])=[O:30]>>[CH2:1]([N:8]1[CH2:12][CH2:11][C:10]([CH2:13][C:14]([O:16][CH3:17])=[O:15])([CH2:32][N+:29]([O-:31])=[O:30])[CH2:9]1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

4

Reactant 3

HCID 6375NitromethaneHCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 76563139HCID 76563139, compound

Product 1

HCID 57550257HCID 57550257, compoundYield 100%

Procedure

A solution of methyl (1-benzylpyrrolidin-3-ylidene)acetate a45 (3 g, 1.2 mmol, 1 eq), 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU, 0.7 g, 4.6 mmol, 3.8 eq) in nitromethane (30 ml) is refluxed for 30 h. The solution is concentrated in vacuum and the resulting oil is purified by chromatography over silicagel (ethyl acetate/hexane 30/70) to afford 3.7 g of methyl [1-benzyl-3-(nitromethyl)pyrrolidin-3-yl]acetate a46 as a black oil.

Workup

  1. concentrationThe solution is concentrated in vacuum
  2. customthe resulting oil is purified by chromatography over silicagel (ethyl acetate/hexane 30/70)

Sources & evidence

ORD record
ord-c9ea4f54a17d4b8ab5620e740ec6bea8
Source dataset
uspto-grants-2011_05
Patent number
US07943605B2

Reaction notes

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