M-Cresol → HCID 168648, compound

Participants

Reaction Conditions

Reaction Steps

To a mixed solution of 60.0 g (0.55 mol) of p-cresol, 60.0 g (0.55 mol) of m-cresol and 2.4 g of oxalic acid dihydrate was added dropwise 33.7 g (0.42 mol) of a 37% formaldehyde solution with stirring at 100° C., and the mixture was reacted with stirring at 100±50° C. for 4 hours. After the end of the reaction, 2,000 ml of water was poured into the reaction solution to cause precipitation. After removing the supernatant by decantation, the precipitate was dissolved in 120 ml of acetone and 1,200 ml of water was poured into the solution to cause precipitation. After the supernatant has been decanted, the solution was evaporated to dryness under reduced pressure to give 74.5 g of residual p-cresol/m-cresol/formaldehyde polycondensate as faintly yellow-tinted waxy crystals. Mw≈880; Mw/Mn=2.07 (GPC with polystyrene calibration).

Provenance & Evidence