Hydrogen Peroxide → HCID 20391034, compound

HRID 426536Notes

Reaction equation

HRID 426536 reaction equation
[Cl:1][CH2:2][CH2:3][O:4][C:5]1[CH:17]=[CH:16][C:15]2[C:14]3[C:9](=[CH:10][C:11]([O:18][CH2:19][CH2:20][Cl:21])=[CH:12][CH:13]=3)[C:8](=[O:22])[C:7]=2[CH:6]=1.[OH:23]O>S(=O)(=O)(O)O>[Cl:21][CH2:20][CH2:19][O:18][C:11]1[CH:12]=[CH:13][C:14]2[C:15]3[CH:16]=[CH:17][C:5]([O:4][CH2:3][CH2:2][Cl:1])=[CH:6][C:7]=3[C:8](=[O:23])[O:22][C:9]=2[CH:10]=1

Participants

4

Reactant 2

HCID 784Hydrogen PeroxideHCID 20391062HCID 20391062, compound

Product 1

HCID 20391034HCID 20391034, compound

Reagents, catalysts & solvents 1

HCID 1118Sulfuric AcidSolvent

Procedure

A solution of 13.5 g (0.04 mole) of 2,7-bis(2-chloroethoxy)fluoren-9-one in 100 ml of concentrated sulfuric acid is slowly reacted with 12 ml of a 30% hydrogen peroxide solution at room temperature. The reaction which is strongly exothermic is controlled by cooling the stirred reaction mixture in an ice-water bath. The cooled reaction mixture is poured onto 500 ml of an ice-water mixture and the resulting 3,8-bis(2-chloroethoxy)-6H-dibenzo[b,d]pyran-6-one which separates is isolated.

Workup

  1. customThe reaction which
  2. temperatureby cooling
  3. customthe stirred reaction mixture in an ice-water bath
  4. customThe cooled reaction mixture

Sources & evidence

ORD record
ord-7b634cf61c04487f9f91908d61c3ad55
Source dataset
uspto-grants-1979_10
Patent number
US04169897

Reaction notes

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