3,4-Diaminopyridine → HCID 178527813, compound

HRID 1090316Notes

Reaction equation

HRID 1090316 reaction equation
[NH2:1][C:2]1[CH:3]=[N:4][CH:5]=[CH:6][C:7]=1[NH2:8].[C:9](=S)=[S:10]>C(O)C>[SH:10][C:9]1[NH:8][C:7]2[CH:6]=[CH:5][N:4]=[CH:3][C:2]=2[N:1]=1

Participants

4

Reactant 2

HCID 59183,4-DiaminopyridineHCID 6348Carbon Disulfide

Product 1

HCID 178527813HCID 178527813, compound

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

A mixture of 25 g (0.23 mol) of 3,4-diaminopyridine in 750 mL of ethanol containing 50 mL (63.2 g), 0.83 mol) of carbon disulfide was heated under reflux for 5 hours. The reaction mixture was allowed to cool to room temperature and the beige precipitate which had formed was collected by filtration and allowed to air dry overnight. The product amounted to 33.5 g, m.p.>320° C.

Workup

  1. temperaturewas heated
  2. temperatureunder reflux for 5 hours
  3. customthe beige precipitate which had formed
  4. filtrationwas collected by filtration
  5. customto air dry overnight

Sources & evidence

ORD record
ord-a8611e3e39a6403fbc8d2763080d029e
Source dataset
uspto-grants-1992_01
Patent number
US05081253

Reaction notes

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