Hydrolyse acido-catalysee d' un sulfure de dienyle application a la synthese de la gamma-damasoone
作者:Pascal Gosselin
DOI:10.1016/s0040-4020(01)90341-2
日期:1988.1
synthetic route to T-Damasoone 1 starting with methyl-T-dithiocyclogeranate 2 is described. Addition of RMPT was found necessary to perfon the carbophilic addition of allylmagnesium bromide on ditkioester 2. A dienysulfide, 6,6-dimethyl-2-methylene-(l-methylthio-l,3-butadiene)-l-yl cyclohexane 3, resulted from this addition, and not the expected dithioketal. Following a number of described condition, hydrolysis
描述了从甲基-T-二硫代环草酸酯2开始的新的合成方法,以合成T-Damasoone 1。发现必须添加RMPT才能对二烷基酯2进行烯丙基溴化镁的嗜热加成反应。生成了二烯硫醚6,6-二甲基-2-亚甲基-(1-甲硫基-1,3-丁二烯)-1-基环己烷3从此添加,而不是预期的二硫代缩酮。在许多描述的条件之后,事实证明其水解为T-大马士革不令人满意。这些最初的尝试但是显示了对于酸性介质的必要性。该发现允许开发一种新的,非常温和的将二烯基硫醚水解为不饱和酮的方法。