Di-alkylation of 2,2-dimethyl-1,3-dithiacycloalkane-S-oxides has been achieved allowing the synthesis of two tertiary thiol centres. The diastereoisomers of the mono-alkylated products have been shown to react at different rates. The X-ray crystal structures of three substituted dithiane-S-oxides have been determined, and the conversion of the dialkylated products into cyclic disulfide derivatives of tertiary thiols (1,2-dithiolanes) has been achieved by treatment with acid.
通过对 2,2-二甲基-1,3-二
硫代环
烷烃-S-氧化物进行二烷基化,可以合成两个叔
硫醇中心。单烷基化产物的非对映异构体以不同的速率发生反应。测定了三种取代的二
硫烷基-S-氧化物的 X 射线晶体结构,并通过酸处理将二烷基化产物转化为叔
硫醇的环状二
硫衍
生物(1,2-二
硫环)。