A series of 1,4-enynes was prepared and the compounds metalated with butyllithium in ether. The formation of the mono- and dilithio derivatives was studied by PMR and UV. Protonation of the dilithio compounds gave vinylallenes, 1,3- and 1,4-enynes. Isomerisation of the 1,4-enynes in DMSO using dimsylsodium gave vinylacetylenes from compounds containing a terminal double bond and vinylallenes from those
制备了一系列的1,4-烯炔,并用丁基
锂在
乙醚中将化合物
金属化。通过PMR和UV研究了单和二
硫代衍
生物的形成。二
硫代化合物的质子化得到
乙烯基丙二烯,1,3-和1,4-烯炔。使用二甲基
钠在
DMSO中将1,4-烯炔异构化,从含有末端双键的化合物得到
乙烯基乙炔,从具有内部双键的化合物得到
乙烯基丙二烯。还研究了各种质子的H-D交换的顺序。