反应详情

温度

165 °C

Water (200 ml) and a 10% aqueous solution of HCl were added to the resol/cyclohexane solution to adjust its pH to 5.5. The solution was then well stirred and left to stand to separate it into an aqueous layer and an oil layer. The aqueous layer was removed. Phenol (94 g; 1 mole) and 27 g a 10% aqueous solution of HCl were added to the neutralized oil layer, and the mixture was heated to perform co-condensation reaction of the p-cyclohexylphenol resol with phenol. The reaction mixture was heated to 165° C. while distilling off the cyclohexane solvent and water under atmospheric pressure and then under reduced pressure. There was obtained 278 g of a pale yellow p-cyclohexylphenol/phenol/formaldehyde co-condensate having a softening point of 101° C.

1. waitleft
2. customto separate it into an aqueous layer
3. customThe aqueous layer was removed
4. temperaturethe mixture was heated
5. distillationwhile distilling off the cyclohexane solvent and water under atmospheric pressure