Hydrazine hydrate (1:1) → HCID 68884440, compound

HRID 1612638Notes

Reaction equation

HRID 1612638 reaction equation
C[O:2][C:3]([C:5]1[C:13]2[S:12][N:11]=[N:10][C:9]=2[CH:8]=[CH:7][CH:6]=1)=O.O.[NH2:15][NH2:16]>O>[S:12]1[C:13]2[C:5]([C:3]([NH:15][NH2:16])=[O:2])=[CH:6][CH:7]=[CH:8][C:9]=2[N:10]=[N:11]1

Participants

4

Reactant 2

HCID 24654Hydrazine hydrate (1:1)HCID 1794011,2,3-Benzothiadiazole-7-carboxylic acid, methyl ester

Product 1

HCID 68884440HCID 68884440, compoundYield 90.7%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

9.7 g of 7-methoxycarbonylbenzo-1,2,3-thiadiazole are reacted for 19 hours with 4.8 g of hydrazine hydrate in 30 ml of water at 50° C. and then for a further 6 hours at 80°-90° C. The suspension is cooled slightly, filtered while hot and washed with water to give 8.8 g of white crystals having a melting point of 270°-272° C.

Workup

  1. temperatureThe suspension is cooled slightly
  2. filtrationfiltered while hot and
  3. washwashed with water

Sources & evidence

ORD record
ord-001efa3097454fd49de90938e6e9a086
Source dataset
uspto-grants-1993_03
Patent number
US05190928

Reaction notes

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