Dimethylamine → HCID 19088223, compound

Participants

Reaction Steps

125 g (1 mol) of 80% strength aqueous 2,2-dimethyl-3-hydroxypropanal (crude mixture from the synthesis, reduced to a water content of 20% by distillation), 109 g (0.9 mol) of 2,6-dimethylphenol, 12 g (0.11 mol) of 40% strength aqueous dimethylamine and 700 g of methanol are reacted in a stirred autoclave at 180° C. and under the autogenous pressure of 20-30 bar for 10 h. Workup of the reaction mixture by distillation yields 168 g (91%) of 3-(3,5-dimethyl-4-hydroxyphenyl)-2,2-dimethylpropanal (boiling point 140°-142° C.; melting point 72°-73° C.).

Provenance & Evidence