Methanol → HCID 86735197, compound

HRID 614663Notes

Reaction equation

HRID 614663 reaction equation
[C:1]1(=[O:7])[O:6][C:4](=[O:5])[CH:3]=[CH:2]1.[OH-:8].[Ca+2:9].[OH-].[CH3:11]O>>[CH3:11]/[C:2](=[CH:3]/[C:4]([O-:8])=[O:5])/[C:1]([O-:6])=[O:7].[CH3:11]/[C:2](=[CH:3]/[C:4]([O-:8])=[O:5])/[C:1]([O-:6])=[O:7].[Ca+2:9].[Ca+2:9]

Participants

4

Reactant 3

HCID 887MethanolHCID 7923Maleic AnhydrideHCID 6093208Calcium Hydroxide

Product 1

HCID 86735197HCID 86735197, compound

Conditions

Temperature
25 °C

Procedure

One mole of maleic anhydride is dissolved with stirring in 1000 ml methanol at 50°-60° C. The mixture is cooled to 25° C. and with the aid of a pH meter, the pH is adjusted to 8.6 with calcium hydroxide while maintaining the temperature below 25° C. with an ice bath. 149 g of calcium bis(methyl maleate) is recovered by crystallizing out of methanol followed by drying in a vacuum oven.

Workup

  1. temperaturewhile maintaining the temperature below 25° C. with an ice bath
  2. custom149 g of calcium bis(methyl maleate) is recovered
  3. customby crystallizing out of methanol
  4. customby drying in a vacuum oven

Sources & evidence

ORD record
ord-5c8c5d7edf18477dbf816cfc3f820f94
Source dataset
uspto-grants-1979_03
Patent number
US04145558

Reaction notes

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