Water → Benzophenone

HRID 1681448Notes

Reaction equation

HRID 1681448 reaction equation
[C:1]1([CH2:7][C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.O.S(=O)=[O:16].C1(NC2C=CC=CC=2)C=CC=CC=1>CCOCC>[C:7]([C:8]1[CH:9]=[CH:10][CH:11]=[CH:12][CH:13]=1)(=[O:16])[C:1]1[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1

Participants

6

Reactant 4

HCID 962WaterHCID 1119Sulfur DioxideHCID 7580DiphenylmethaneHCID 11487Diphenylamine

Product 1

HCID 3102BenzophenoneYield 95%

Reagents, catalysts & solvents 1

HCID 3283Diethyl EtherSolvent

Procedure

Ten millimoles of diphenylmethane was heated at 400° C. for 1 hour with 1.35 ml of water saturated with sulfur dioxide in the microreactor described in Comparative Examples 1 to 10. After cooling, the product was entracted with ether. The ether layer was dried (Na2So4) and concentrated to yield 95% of benzophenone and 5% of diphenylamine. Colloidal sulfur was observed in the aqueous layer.

Workup

  1. temperatureAfter cooling
  2. dry with materialThe ether layer was dried (Na2So4)
  3. concentrationconcentrated

Sources & evidence

ORD record
ord-d607c9ae602f4ada84e9499697a9085b
Source dataset
uspto-grants-1992_12
Patent number
US05171880

Reaction notes

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