Potassium Hydroxide → HCID 88769560, compound

Participants

Reaction Steps

15 g of trans-2,3-dihydro-2-(4-hydroxy-3-methoxyphenyl)-7-methoxy-3-methyl-5-(E)-propenylbenzofurane("Dehydrodiisoeugenol") are dissolved in 150 ml abs. toluene at 80° . 9.5 g of N,N-dimethyl-2-chloroethylamine-hydrochloride and 15.5 g KOH in solid form are added. After 6 h at 80°, the solution is cooled down and decanted from solid KOH, whereafter the toluene solution is washed with water to remove dissolved KOH. After drying over sodium sulfate, the solution is evaporated in vacuo. The residue is cristallized in vacuo, and the still present non-cristalline part is dissolved in petroleum ether. One obtains 11.2 g of N-2-[4-(trans-2,3-dihydro-7-methoxy-3-methyl-5-(E)-propenylbenzofurane-2-yl)-2-methoxyphenoxy]ethyl-N,N,-dimethylamine, as slightly yellow cristals of mp 58°-60° C.

Provenance & Evidence