Dimethyl Sulfoxide → HCID 20382792, compound

HRID 1447749Notes

Reaction equation

HRID 1447749 reaction equation
[C:1]1(=[O:11])O[C:4](=[O:5])[C:3]2=[CH:7][CH:8]=[CH:9][CH:10]=[C:2]12.[C:12]([NH:18][NH2:19])(=[O:17])[C:13]([NH:15][NH2:16])=[O:14].[CH3:20][S:21]([CH3:23])=[O:22].[OH2:24]>C1(C)C=CC=CC=1>[C:4]1(=[O:5])[N:16]([NH:15][C:13]([C:12]([NH:18][N:19]2[C:1](=[O:11])[C:2]3=[CH:10][CH:9]=[CH:8][CH:7]=[C:3]3[C:4]2=[O:5])=[O:17])=[O:14])[C:1](=[O:24])[C:2]2=[CH:10][CH:9]=[CH:8][CH:7]=[C:3]12.[CH3:20][S:21]([CH3:23])=[O:22]

Participants

6

Reactant 4

HCID 679Dimethyl SulfoxideHCID 962WaterHCID 6811Phthalic AnhydrideHCID 13826Oxalic acid, dihydrazide

Product 1

HCID 20382792HCID 20382792, compound

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Procedure

Two moles of phthalic anhydride (296 g.) and one mole of oxalic dihydrazide (118 g.) in 500 ml. dimethyl sulfoxide and 750 ml. toluene were heated at reflux until two moles of water were removed (about two hours). The mixture was cooled and filtered. After washing with benzene, the white product was dried to constant weight at 50° C. giving an essentially quantitative yield of N,N'bis(phthalimido)oxamide-dimethyl sulfoxide 1:2 complex.

Workup

  1. customwere removed (about two hours)
  2. temperatureThe mixture was cooled
  3. filtrationfiltered
  4. washAfter washing with benzene
  5. customthe white product was dried to constant weight at 50° C.

Sources & evidence

ORD record
ord-a102846356fc4396aedbda4af1361e36
Source dataset
uspto-grants-1979_12
Patent number
US04178280

Reaction notes

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