Hydrochloric Acid → HCID 85769592, compound

HRID 436253Notes

Reaction equation

HRID 436253 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([Cl:8])=[CH:4][C:3]=1[N:9](C(=O)C1C=CC=CC=1)[NH2:10].P(Cl)(Cl)(Cl)(Cl)Cl.Cl.[C:26]1(O)[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=1.[C:33](Cl)(Cl)(Cl)[Cl:34]>>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([Cl:8])=[CH:4][C:3]=1[NH:9][N:10]=[C:33]([Cl:34])[C:26]1[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=1

Participants

6

Reactant 5

HCID 313Hydrochloric AcidHCID 996PhenolHCID 5943Carbon Tetrachloride2×HCID 24819Phosphorus pentachlorideHCID 54255782HCID 54255782, compound

Product 1

HCID 85769592HCID 85769592, compound

Procedure

A quantity (16.87 g., 0.06 mole) benzoic acid (2,5-dichlorophenyl)hydrazide (Preparation VI, above) was added to a solution of 12.50 g. ((0.06 mole) phosphorus pentachloride in 50 ml. carbon tetrachloride, and the resulting suspension was allowed to react at 25° C. until evolution of hydrogen chloride gas slowed. The reaction mixture was then heated at the reflux temperature for 15 minutes, chilled in ice, and 17.8 g. (0.19 mole) phenol in 75 ml. carbon tetrachloride was added. After the reaction was completed, the carbon tetrachloride was removed by evaporation under reduced pressure at 30° to 32° C. The resulting suspension was filtered, and the filter cake was washed with 50 ml. cold methanol. Two recrystallizations from Skellysolve B gave benzoyl chloride (2,5-dichlorophenyl)hydrazone melting at 84.5° to 86° C.

Workup

  1. temperatureThe reaction mixture was then heated at the reflux temperature for 15 minutes
  2. temperaturechilled in ice
  3. customthe carbon tetrachloride was removed by evaporation under reduced pressure at 30° to 32° C
  4. filtrationThe resulting suspension was filtered
  5. washthe filter cake was washed with 50 ml
  6. customTwo recrystallizations from Skellysolve B

Sources & evidence

ORD record
ord-7f1938c3f951438e9e0f0b00758e4ce3
Source dataset
uspto-grants-1977_02
Patent number
US04008217

Reaction notes

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