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3,5-Dimethyl-1H-pyrrole-2-carbaldehyde → 3-(3,5-Dimethyl-1H-pyrrol-2-ylmethylene)-4-(3-chloro-phenyl)-1,3-dihydro-indol-2-one

HRID 1839751
Notes
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Reaction equation

HRID 1839751 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([C:8]2[CH:16]=[CH:15][CH:14]=[C:13]3[C:9]=2[CH2:10][C:11](=[O:17])[NH:12]3)[CH:5]=[CH:6][CH:7]=1.[CH3:18][C:19]1[CH:23]=[C:22]([CH3:24])[NH:21][C:20]=1[CH:25]=O>C(O)C.N1CCCCC1>[CH3:18][C:19]1[CH:23]=[C:22]([CH3:24])[NH:21][C:20]=1[CH:25]=[C:10]1[C:9]2[C:13](=[CH:14][CH:15]=[CH:16][C:8]=2[C:4]2[CH:5]=[CH:6][CH:7]=[C:2]([Cl:1])[CH:3]=2)[NH:12][C:11]1=[O:17]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 2

HCID 2704653,5-Dimethyl-1H-pyrrole-2-carbaldehydeHCID 225617984-(3-Chloro-phenyl)-1,3-dihydro-indol-2-one

Product 1

HCID 697415863-(3,5-Dimethyl-1H-pyrrol-2-ylmethylene)-4-(3-chloro-phenyl)-1,3-dihydro-indol-2-oneYield 68.8%

Reagents, catalysts & solvents 2

HCID 8082PiperidineCatalystHCID 702Ethanol
Solvent

Procedure

To a solution of 4-(3-chloro-phenyl)-1,3-dihydro-indol-2-one (60.9 mg, 0.25 mmol) and 3,5-dimethyl-1H-pyrrole-2-carbaldehyde (32 mg, 0.26 mmol) in ethanol (2 mL) was added piperidine (3 drops). The reaction mixture was stirred at room temperature for three days. A yellow solid product was precipitated out, filtered, washed by ethanol for three times, and dried under high vacuum to provide pure product 3-(3,5-Dimethyl-1H-pyrrol-2-ylmethylene)-4-(3-chloro-phenyl)-1,3-dihydro-indol-2-one as a yellow solid (60 mg, 68%).

Workup

  1. customA yellow solid product was precipitated out
  2. filtrationfiltered
  3. washwashed by ethanol for three times
  4. customdried under high vacuum

Sources & evidence

ORD record
ord-ff75501efca74b469071d476a59ddacc
Source dataset
uspto-grants-2004_01
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US06677368B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes