Hydrogen Sulfide → HCID 20387787, compound

HRID 1764285Notes

Reaction equation

HRID 1764285 reaction equation
[N+:1]([C:4]1[CH:22]=[C:21]([N+:23]([O-:25])=[O:24])[CH:20]=[CH:19][C:5]=1[NH:6][C:7]1[S:8][C:9]([CH2:17][CH3:18])=[CH:10][C:11]=1[C:12]([O:14][CH2:15][CH3:16])=[O:13])([O-])=O.S>N.C(O)C>[NH2:1][C:4]1[CH:22]=[C:21]([N+:23]([O-:25])=[O:24])[CH:20]=[CH:19][C:5]=1[NH:6][C:7]1[S:8][C:9]([CH2:17][CH3:18])=[CH:10][C:11]=1[C:12]([O:14][CH2:15][CH3:16])=[O:13]

Participants

5

Reactant 2

HCID 402Hydrogen SulfideHCID 12442329HCID 12442329, compound

Product 1

HCID 20387787HCID 20387787, compound

Reagents, catalysts & solvents 2

HCID 222AmmoniaSolventHCID 702EthanolSolvent

Procedure

Ethyl 2-(2,4-dinitroanilino)-5-ethyl-thiophene-3-carboxylate (0.5 g) in 6N ammonia (25 ml) and ethanol (10 ml) was stirred at reflux temperature and hydrogen sulphide gas passed in over a period of 2 hours. The reaction mixture was cooled to room temperature and the title compound obtained as a yellow precipitate filtered off, washed with water, and dried in vacuo, m.p. 174°-176° C. (EtOAc).

Workup

  1. custompassed in over a period of 2 hours

Sources & evidence

ORD record
ord-8e44d0ca274e487dafb6cba2ea13f9ae
Source dataset
uspto-grants-1978_09
Patent number
US04115574

Reaction notes

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