M-Cresol → HCID 168648, compound

Participants

Reaction Steps

To a mixed solution of 30 g (0.28 mole) of p-cresol, 30 g (0.28 mole) of m-cresol, 1.0 g of oxalic acid dihydrate and 2 ml of water, 27.0 g of aqueous solution of 37% formaldehyde was dropped at 100° C. with stirring, followed by reaction at 100°±5° C. for 4 hours with stirring. After reaction, 1000 ml of water was poured into the reaction solution for deposition. A supernatant was removed by decantation. The deposited material was dissolved in 60 ml of acetone, followed by pouring of 600 ml of water for deposition. After removing a supernatant by decandation, the deposited material was concentrated under reduced pressure to dryness to give 40.5 g of pale white waxy crystals of p-cresol/m-cresol/formaldehyde resin. Mw was about 4000 and the degree of dispersion was 3.53 (GPC method, polystyrene standard).

Provenance & Evidence