Chlorosuccinimide → HCID 57826514, compound

HRID 1961256Notes

Reaction equation

HRID 1961256 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([C:13]([OH:15])=[O:14])[S:5][C:6]=1[C:7]1[N:11]([CH3:12])[N:10]=[CH:9][CH:8]=1.[Cl:16]N1C(=O)CCC1=O>C1COCC1>[Cl:1][C:2]1[CH:3]=[C:4]([C:13]([OH:15])=[O:14])[S:5][C:6]=1[C:7]1[N:11]([CH3:12])[N:10]=[CH:9][C:8]=1[Cl:16]

Participants

4

Reactant 2

HCID 31398ChlorosuccinimideHCID 57826829HCID 57826829, compound

Product 1

HCID 57826514HCID 57826514, compoundYield 98.1%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

A solution of 4-chloro-5-(1-methyl-1H-pyrazol-5-yl)-2-thiophenecarboxylic acid (121 mg, 0.5 mmol) and N-chlorosuccinimide (67 mg, 0.5 mmol) in THF (5 mL) was stirred in a sealed tube at 70° C. After 4 hrs, the solution was concentrated and partitioned between DCM and H2O. The aqueous layer was extracted several times with DCM. The organic fractions were combined, concentrated and azeotropically dried with toluene to give the title compound as a brown oil (136 mg, 98%): LC-MS (ES) m/z=278 (M+H)+.

Workup

  1. concentrationthe solution was concentrated
  2. custompartitioned between DCM and H2O
  3. extractionThe aqueous layer was extracted several times with DCM
  4. concentrationconcentrated
  5. dry with materialazeotropically dried with toluene

Sources & evidence

ORD record
ord-d09cff7af75c480aadab4ea946557d36
Source dataset
uspto-grants-2013_04
Patent number
US08410158B2

Reaction notes

Loading…