Cyclopropylamine → HCID 178418304, compound

HRID 1277

Reaction equation

HRID 1277 reaction equation
[CH3:1][C:2]1[C:19]([F:20])=[C:18]([F:21])[CH:17]=[C:16]([F:22])[C:3]=1[C:4]([C:6](=[CH:12]OCC)[C:7]([O:9][CH2:10][CH3:11])=[O:8])=[O:5].[CH:23]1([NH2:26])[CH2:25][CH2:24]1>C(O)C>[CH3:1][C:2]1[C:19]([F:20])=[C:18]([F:21])[CH:17]=[C:16]([F:22])[C:3]=1[C:4]([C:6](=[CH:12][NH:26][CH:23]1[CH2:25][CH2:24]1)[C:7]([O:9][CH2:10][CH3:11])=[O:8])=[O:5]

Participants

4

Reactant 2

HCID 69828CyclopropylamineHCID 54242925Ethyl 2-(2,4,5-trifluoro-6-methylbenzoyl)-3-ethoxyacrylate

Product 1

HCID 178418304HCID 178418304, compound

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

Ethyl 2-(2-methyl-3,4,6-trifluorobenzoyl)-3-ethoxyacrylate (3.5 g) is dissolved in ethanol (25 ml) and thereto cyclopropylamine (0.84 ml) is added dropwise under ice-cooling. After stirring at room temperature for 30 minutes, the mixture is concentrated and the residue is purified with column chromatography (silica-gel, dichloromethane: n-hexane =1: 1) to give ethyl 2-(2-methyl-3,4,6-trifluorobenzoyl)-3-cyclopropylaminoacrylate (2.7 g).

Workup

  1. temperaturecooling
  2. concentrationthe mixture is concentrated
  3. customthe residue is purified with column chromatography (silica-gel, dichloromethane: n-hexane =1: 1)

Sources & evidence

ORD record
ord-a6bc9092d4d54296b6f4a8701204549f
Source dataset
uspto-grants-1998_03
Patent number
US05723648

Linked notes

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