Acetic Anhydride → HCID 23332924, compound

HRID 224401Notes

Reaction equation

HRID 224401 reaction equation
[OH:1][C:2]1[CH:3]=[CH:4][C:5]2[O:10][CH:9]([C:11]([Cl:14])([Cl:13])[Cl:12])[O:8][CH:7]([C:15]([Cl:18])([Cl:17])[Cl:16])[C:6]=2[CH:19]=1.[C:20](OC(=O)C)(=[O:22])[CH3:21]>O>[C:20]([O:1][C:2]1[CH:3]=[CH:4][C:5]2[O:10][CH:9]([C:11]([Cl:12])([Cl:13])[Cl:14])[O:8][CH:7]([C:15]([Cl:18])([Cl:17])[Cl:16])[C:6]=2[CH:19]=1)(=[O:22])[CH3:21]

Participants

4

Reactant 2

HCID 7918Acetic AnhydrideHCID 233329442,4-Bis(trichloromethyl)-2H,4H-1,3-benzodioxin-6-ol

Product 1

HCID 23332924HCID 23332924, compound

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

A mixture of 6-hydroxy-2,4-bis(trichloromethyl)benzo[1,3]dioxin (1.0 g.) and acetic anhydride (10 ml.) was warmed on the steam bath for 15 minutes, and then cooled to ambient temperature. Water (40 ml.) was added, and the mixture stirred for 1 hour. The product was removed by filtration, washed with water, dried and crystallised from ethanol to give 6-acetoxy-2,4-bis(trichloromethyl)benzo[1,3]dioxin, m.p. 142°-144° C.

Workup

  1. temperaturewas warmed on the steam bath for 15 minutes
  2. customThe product was removed by filtration
  3. washwashed with water
  4. customdried
  5. customcrystallised from ethanol

Sources & evidence

ORD record
ord-47519d6e0b45497388cd692410609f1e
Source dataset
uspto-grants-1980_11
Patent number
US04232032

Reaction notes

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