Water → HCID 429297, compound

HRID 596963Notes

Reaction equation

HRID 596963 reaction equation
[CH3:1][C:2]1[CH:15]=[CH:14][C:13]2[S:12](=[O:17])(=[O:16])[C:11]3[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=3)[C:5](=[O:18])[C:4]=2[CH:3]=1.S(=O)(=O)(O)[OH:20].[OH2:24]>C(O)(=O)C.[O-2].[O-2].[O-2].[Cr+6]>[C:1]([C:2]1[CH:15]=[CH:14][C:13]2[S:12](=[O:17])(=[O:16])[C:11]3[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=3)[C:5](=[O:18])[C:4]=2[CH:3]=1)([OH:20])=[O:24]

Participants

6

Reactant 3

HCID 962WaterHCID 1118Sulfuric AcidHCID 3181002-Methyl-10lambda~6~-thioxanthene-9,10,10-trione

Product 1

HCID 429297HCID 429297, compound

Reagents, catalysts & solvents 2

HCID 10219390chromium (VI) trioxideCatalystHCID 176Acetic AcidSolvent

Procedure

A solution of chromium trioxide (1.50 g) in water (4.0 ml) was added to 2-methylthioxanthone-10,10-dioxide (1.29 g) in acetic acid (25 ml). Sulphuric acid (2.0 ml) was added and the mixture was boiled under reflux for 15 min. The mixture was cooled, and the crystallised product was filtered off, washed with water, and dried at 110° C, m.p. 276° C.

Workup

  1. temperatureunder reflux for 15 min
  2. temperatureThe mixture was cooled
  3. filtrationthe crystallised product was filtered off
  4. washwashed with water
  5. customdried at 110° C

Sources & evidence

ORD record
ord-630c3f6f9bef4d628d4f606c945333a0
Source dataset
uspto-grants-1977_03
Patent number
US04012499

Reaction notes

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