Maleic Anhydride → HCID 178516660, compound

HRID 1029339Notes

Reaction equation

HRID 1029339 reaction equation
[SH:1][C:2]1[S:3][C:4]([SH:7])=[N:5][N:6]=1.[C:8]1(=[O:14])[O:13][C:11](=[O:12])[CH:10]=[CH:9]1>O1CCCC1>[SH:1][C:2]1[S:3][C:4]([S:7][CH:10]2[CH2:9][C:8](=[O:14])[O:13][C:11]2=[O:12])=[N:5][N:6]=1

Participants

4

Reactant 2

HCID 7923Maleic AnhydrideHCID 178418558HCID 178418558, compound

Product 1

HCID 178516660HCID 178516660, compound

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

A mixture of 95 grams (0.5 moles) of 2,5-dimercapto-1,3,4-thiadiazole and 49.0 grams (0.5 moles) of maleic anhydride in 500 ml. tetrahydrofuran was refluxed for six hours. After distilling off the solvent, a light tan solid (123 g.) was obtained (m.p. 194°-196° C.). Its infrared spectrum and elemental analysis appeared to be consistent with the proposed structure.

Workup

  1. distillationAfter distilling off the solvent
  2. customa light tan solid (123 g.) was obtained (m.p. 194°-196° C.)

Sources & evidence

ORD record
ord-689890642c5f430d83e589c1cdea5ed7
Source dataset
uspto-grants-1992_04
Patent number
US05102568

Reaction notes

Loading…