HCID 178524273, compound → HCID 178515054, compound

HRID 867206Notes

Reaction equation

HRID 867206 reaction equation
[C:1]1([S:7]([C:10]2[CH:18]=[C:17]([C:19]3[NH:23][N:22]=[N:21][N:20]=3)[CH:16]=[CH:15][C:11]=2[C:12](O)=[O:13])(=[O:9])=[O:8])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1>S(=O)(=O)(O)O>[NH:20]1[C:19]([C:17]2[CH:16]=[CH:15][C:11]3[C:12](=[O:13])[C:6]4[C:1]([S:7](=[O:9])(=[O:8])[C:10]=3[CH:18]=2)=[CH:2][CH:3]=[CH:4][CH:5]=4)=[N:23][N:22]=[N:21]1

Participants

3

Reactant 1

HCID 178524273HCID 178524273, compound

Product 1

HCID 178515054HCID 178515054, compound

Reagents, catalysts & solvents 1

HCID 1118Sulfuric AcidSolvent

Procedure

2-Phenylsulphonyl-4-(5-tetrazolyl)benzoic acid (200 mg) was heated with concentrated sulphuric acid (10 ml) for 5 hrs. at 120° C. After cooling and dilution with water, a solid product separated and was filtered off, washed with water, and recrystallised from acetic acid to give 3-(5-tetrazolyl)thioxanthone-10,10-dioxide, identified by its infrared spectrum.

Workup

  1. customat 120° C
  2. temperatureAfter cooling
  3. customdilution with water, a solid product separated
  4. filtrationwas filtered off
  5. washwashed with water
  6. customrecrystallised from acetic acid

Sources & evidence

ORD record
ord-0eec470f8dff4af4abb508cd94bc704a
Source dataset
uspto-grants-1978_07
Patent number
US04103015

Reaction notes

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