Carbon Dioxide → HCID 86736244, compound
Reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([S:8](Cl)(=[O:10])=[O:9])=[CH:4][CH:3]=1.[NH2:12][NH:13][C:14]([NH:16][NH2:17])=[O:15].C(=O)(O)[O-].[Na+].C(=O)=O>C(O)C>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([S:8]([NH:12][NH:13][C:14]([NH:16][NH2:17])=[O:15])(=[O:10])=[O:9])=[CH:4][CH:3]=1Participants
6
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
211 (1.0 mole) p-chlorobenzenesulfonyl chloride was added to a suspension of 45 g (0.5 mole) carbohydrazide and 100 g sodium bicarbonate in 1000 ml ethanol in a 3 liter reaction flask. The mixture was stirred and heated gradually to gentle reflux (80° C) as carbon dioxide was evolved. Heating was continued until CO2 no longer evolved (3hours). The mix was cooled to 20 C and filtered. The mixture of product and sodium chloride was dried at 60° C. Yield = 227 g. The solid mixture was suspended in 2000 ml water, stirred to dissolve the sodium chloride, and then the insoluble product was filtered, washed and dried. Yield = 129 g, m.p. 239-240° C (dec.)
Workup
- temperatureheated gradually
- temperatureHeating
- custom(3hours)
- temperatureThe mix was cooled to 20 C
- filtrationfiltered
- additionThe mixture of product and sodium chloride
- customwas dried at 60° C
- stirringstirred
- dissolutionto dissolve the sodium chloride
- filtrationthe insoluble product was filtered
- washwashed
- customdried
Sources & evidence
- ORD record
- ord-8ca08687f7194a03a2837f75606430a2
- Source dataset
- uspto-grants-1979_01
- Patent number
- US04133832
Reaction notes
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