Water → HCID 10692234, compound

HRID 327202Notes

Reaction equation

HRID 327202 reaction equation
[F:1][C:2]([F:10])([F:9])[C:3]([OH:8])([CH3:7])[C:4](O)=[O:5].S(Cl)(Cl)=O.[C:15]([C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][C:18]=1[S:23]([C:26]1[CH:31]=[CH:30][C:29]([NH2:32])=[CH:28][CH:27]=1)(=[O:25])=[O:24])#[N:16].O>CN(C)C(=O)C>[C:15]([C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][C:18]=1[S:23]([C:26]1[CH:31]=[CH:30][C:29]([NH:32][C:4](=[O:5])[C:3]([OH:8])([CH3:7])[C:2]([F:10])([F:9])[F:1])=[CH:28][CH:27]=1)(=[O:25])=[O:24])#[N:16]

Participants

6

Reactant 4

HCID 962WaterHCID 24386Thionyl ChlorideHCID 27751253,3,3-Trifluoro-2-hydroxy-2-methylpropanoic acidHCID 10753680HCID 10753680, compound

Product 1

HCID 10692234HCID 10692234, compoundYield 72%

Reagents, catalysts & solvents 1

HCID 31374DimethylacetamideSolvent

Procedure

To a stirred, cooled (-20° C.) solution of 3,3,3-trifluoro-2-hydroxy-2-methylpropanoic acid (0.82 g, 5.2 mmol) in N,N-dimethylacetamide (10 mL) was added thionyl chloride (0.62 g, 5.2 mmol) and the mixture stirred at -10° to -15° C. for 1 hour. 4[(2-Cyanophenyl)sulphonyl]benzeneamine (1.00 g, 3.8 mmol) was added in one portion and the reaction mixture stirred at room temperature overnight. The mixture was poured-into water and the aqueous solution decanted from an oily solid which was purified by flash column chromatography (5% v/v ethyl acetate/methylene chloride). Recrystallization from methylene chloride/hexane yielded the title propanamide as a white solid (1.08 g, 72%); mp 156°-158° C. 1H--NMR (250 MHz, d6 --DMSO): 1.58 (s, 3H, CH3) 7.59 (s, 1H, OH) 7.88-8.13 (m, 7H, aromatic) 8.31 (d, 1H, J=6.9 Hz, aromatic) 10.50 (s, 1H, OH). MS (CI, CH4): 399 (M+1).

Workup

  1. stirringthe reaction mixture stirred at room temperature overnight
  2. customthe aqueous solution decanted from an oily solid which
  3. customwas purified by flash column chromatography (5% v/v ethyl acetate/methylene chloride)
  4. customRecrystallization from methylene chloride/hexane

Sources & evidence

ORD record
ord-6650fa204ea341e485a3ac6c12f34954
Source dataset
uspto-grants-1993_12
Patent number
US05272163

Reaction notes

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