2-Pyridinecarboxaldehyde → 2-[(2,4-Dimethyl-3-nitrophenylimino)-methylene]-pyridine

HRID 981862Notes

Reaction equation

HRID 981862 reaction equation
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([CH3:8])=[C:4]([N+:9]([O-:11])=[O:10])[C:3]=1[CH3:12].[N:13]1[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=1[CH:19]=O>C(O)C>[CH3:12][C:3]1[C:4]([N+:9]([O-:11])=[O:10])=[C:5]([CH3:8])[CH:6]=[CH:7][C:2]=1[N:1]=[C:19]=[C:14]1[CH:15]=[CH:16][CH:17]=[CH:18][NH:13]1

Participants

4

Reactant 2

HCID 142732-PyridinecarboxaldehydeHCID 133699632,4-Dimethyl-3-nitroaniline

Product 1

HCID 200683532-[(2,4-Dimethyl-3-nitrophenylimino)-methylene]-pyridine

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

3.3 g of 4-amino-2-nitro-m-xylene and 2.1 g of 2-pyridinealdehyde were dissolved in 50 ml ethanol and left to stand. Crystals slowly precipitated and were filtered off under suction and washed with ethanol. The dried product (3.0 g) had a melting point of 114° to 116° C.

Workup

  1. waitleft
  2. customCrystals slowly precipitated
  3. filtrationwere filtered off under suction
  4. washwashed with ethanol

Sources & evidence

ORD record
ord-2e72d61591314d2f90044a849a2c797c
Source dataset
uspto-grants-1991_02
Patent number
US04994087

Reaction notes

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