Adipic Acid → HCID 86747074, compound

Participants

Reaction Conditions

Reaction Steps

66.6 g (0.49 mole) pentaerythritol and 302.4 g (1.12 moles) technical stearic acid were reacted for 1.5 hours at 195° to 205° C. in the presence of 0.2 g tin powder. The pressure was continuously reduced to 12 mbar and was kept at that level for the rest of the reaction time. 51.5 g (0.35 mole) adipic acid and another 0.2 g tin powder were then added before the mixture was heated for another 2.5 hours to 195°-205° C. under a pressure of 16 mbar. The reaction mixture was cooled to 150° C. After the addition of 10.5 g (0.07 mole) tartaric acid, the mixture was continuously heated from 150° C. to 185° C. over a period of 2.5 hours, during which the pressure was gradually reduced to a final vacuum of 13 mbar. After filtration under pressure at 90° C. to 100° C. in the presence of bleaching earth, followed by cooling, the pentaerythritol adipate tartrate stearate (7:5:1:16) (material N; 328 g) was present as a yellowish, brittle wax-like mass (dropping point 56.4° C.; acid number 3.0; saponification number 271.3; hydroxyl number 18.7).

Provenance & Evidence