Triethylamine → N-(4-EThenylphenyl)methanesulfonamide

Beteiligte Stoffe

Reaktionsschritte

To a solution of 500 g (4.2 moles) of 4-vinylaniline and 460 g (4.2 moles) of triethylamine in 1000 cc of anhydrous diethyl ether under a nitrogen atmosphere was added dropwise 478 g (4.2 moles) of methanesulfonyl chloride. The temperature of the reaction vessel was kept below 5° C. by an ice bath during the course of the reaction. When addition was complete (40 min.), the mixture was stirred for an additional 2 hours and the contents of the flask then brought to room temperature. The mixture was filtered and extracted with 500 cc of 1.0 M HCl solution. The etheral portion was separated, dried and the ether removed on a rotary evaporator. The resulting oily solid was extracted with 500 cc of ethanol and recrystallized from ethane/water and then from toluene. 70-75% yield after recrystallization. M.P. = 97° C.

Herkunft & Nachweise