Methanol → HCID 178460595, compound
Reaction equation
C(N([CH2:6][CH3:7])CC)C.C(OC)(=O)C[SH:10].Cl[C:15]1[S:19][C:18]([S:20]([NH2:23])(=[O:22])=[O:21])=[CH:17][C:16]=1[N+:24]([O-:26])=[O:25].[P].[S].[CH3:29][OH:30]>O>[CH3:6][CH:7]([C:15]1[S:19][C:18]([S:20](=[O:22])(=[O:21])[NH2:23])=[CH:17][C:16]=1[N+:24]([O-:26])=[O:25])[C:29]([OH:30])=[S:10]Participants
8
Procedure
Triethylamine (3.06 ml, 2.22 g, 22 mmol) was added to a stirred mixture of methyl thioglycolate (2.12 g, 20 mmol) and 5-chloro-4-nitrothiophene-2-sulfonamide (4.90 g, 30 mmol) (C. A. Obatemi, Phosphorous and Sulfur, 1982, 13, 119) in methanol (30 ml). After a slight exotherm the reaction mixture became very thick and difficult to stir. The mixture was stirred for an additional 16 hours, then added to water (250 ml). The yellowish solid was collected, washed with water air-dried to yield 5.2 g, mp 153°-154° C. Recrystallization from dichloroethane gave methyl (3-nitro-5-sulfamoylthien-2-yl)thioacetic acid with mp 154°-155° C.
Workup
- stirringThe mixture was stirred for an additional 16 hours
- customThe yellowish solid was collected
- washwashed with water
- customair-dried
- customto yield 5.2 g, mp 153°-154° C
- customRecrystallization from dichloroethane
Sources & evidence
- ORD record
- ord-980750fcf1f14791b2a8af760e33c1a8
- Source dataset
- uspto-grants-1992_03
- Patent number
- US05093332
Reaction notes
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