Highly substituted dienes from butyne-1,4-diol. A one-flask synthesis and the mechanism of formation of 3-(N,N-diethylamino)-2-phenylsulphinylbutadiene
Abstract
When 4-acetoxybut-2-yn-1-ol is treated with benzenesulphenyl chloride and triethylamine, followed by diethylamine, 3-(N,N-diethylamino)-2-phenylsulphinylbutadiene is produced, in a multistep process, in 90% overall yield.