Maleic Anhydride → 78-04-6

HRID 437852Notes

Reaction equation

HRID 437852 reaction equation
[CH2:1]([Sn:5](=[O:10])[CH2:6][CH2:7][CH2:8][CH3:9])[CH2:2][CH2:3][CH3:4].[C:11]1(=[O:17])[O:16][C:14](=[O:15])[CH:13]=[CH:12]1>>[C:11]([O-:16])(=[O:17])/[CH:12]=[CH:13]\[C:14]([O-:10])=[O:15].[CH2:1]([Sn+2:5][CH2:6][CH2:7][CH2:8][CH3:9])[CH2:2][CH2:3][CH3:4]

Participants

3

Reactant 2

HCID 7923Maleic AnhydrideHCID 61221Dibutyltin oxide

Product 1

HCID 990625178-04-6

Procedure

A mixture containing 747 g. (3 moles) of finely divided dibutyltin oxide and 147.5 g. (1.5 mole) of maleic anhydride was blended in a tumbling type mixing apparatus available as Twin-Shell Dry Blender Model 182181 from Paterson-Kelley Co. Inc. The mixing chamber was maintained at ambient temperature for one hour, at which time the walls of the mixing chamber were heated. At the end of one hour the temperature of the material in the chamber was 54° C. Differential thermal analysis of the material indicated that substantially all of it had reacted to form non-stoichiometric dibutyltin maleate. No significant change in the analysis was observed during three additional hours of heating.

Workup

  1. additionA mixture containing 747 g
  2. additionmixing apparatus available as Twin-Shell
  3. customDry Blender Model 182181 from Paterson-Kelley Co
  4. temperaturewere heated
  5. customAt the end of one hour
  6. customwas 54° C
  7. customhad reacted

Sources & evidence

ORD record
ord-c821de9a327746c58c6d036d19171d32
Source dataset
uspto-grants-1977_06
Patent number
US04032552

Reaction notes

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