Hydrochloric Acid → HCID 71812076, compound

HRID 1752030Notes

Reaction equation

HRID 1752030 reaction equation
Cl[C:2]([O:4][CH3:5])=[O:3].[F:6][C:7]1[CH:12]=[C:11]([F:13])[CH:10]=[CH:9][C:8]=1[NH:14][C:15]([C:17]1[CH:18]=[C:19]([C:24]2[CH:29]=[CH:28][C:27]([F:30])=[CH:26][C:25]=2[F:31])[CH:20]=[CH:21]C=1O)=[O:16].Cl>>[F:6][C:7]1[CH:12]=[C:11]([F:13])[CH:10]=[CH:9][C:8]=1[N:14]1[C:15](=[O:16])[C:17]2[CH:18]=[C:19]([C:24]3[CH:29]=[CH:28][C:27]([F:30])=[CH:26][C:25]=3[F:31])[CH:20]=[CH:21][C:5]=2[O:4][C:2]1=[O:3]

Participants

4

Reactant 3

HCID 313Hydrochloric AcidHCID 6586Methyl chloroformateHCID 86699695HCID 86699695, compound

Product 1

HCID 71812076HCID 71812076, compoundYield 61%

Procedure

A solution of methyl chloroformate (1.2 mL, 12 mmol) was added drop wised to a stirred solution of compound 2 (1.44 g, 4 mmol) in dry anhydrous tetrahydrofuranipyridine (30 mL) at 0° C. The mixture was refluxed for 3 h. After 10 h stirring at room temperature, the pH value of the mixture was adjusted to pH=6 by 5% HCl(aq). The mixture was cooled to obtain crystalline compound on an ice bath for 2-3 h. After cooling, precipitated crystals were filtered off and washed with diluted HCl and water. The crude product was purified by crystallization from hot ethanol to afford compound 14.

Workup

  1. temperatureThe mixture was refluxed for 3 h
  2. temperatureThe mixture was cooled
  3. customto obtain crystalline compound on an ice bath for 2-3 h
  4. temperatureAfter cooling
  5. customprecipitated crystals
  6. filtrationwere filtered off
  7. washwashed with diluted HCl and water
  8. customThe crude product was purified by crystallization from hot ethanol

Sources & evidence

ORD record
ord-e2432989361e4f269c31368f250b0bdf
Source dataset
uspto-grants-2015_10
Patent number
US09162993B2

Reaction notes

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