Electrophilic halogenation of thioethers: 5-chloro- and 5,6-dichloro-5,6-dihydro-1,3-dithiolo[4,5-b][1,4]dithiine-2-one and an efficient synthesis of vinylenedithiotetrathiafulvalene (VDT-TTF)
作者:Olivier J. Dautel、Jan Larsen、Marc Fourmigué
DOI:10.1039/b001996h
日期:——
The SO2Cl2 chlorination of
5,6-dihydro-1,3-dithiolo[4,5-b]- [1,4]dithiine-2-one affords the
corresponding mono- and trans-di-chloro derivatives which
eliminate HCl upon treatment with KF/18-crown-6 or LiBr/HMPA, offering an
easy route to the unsaturated vinylenedithiotetrathiafulvalene
(VDT-TTF).
5,6-二氢-1,3-二硫戊环[4,5-b]- [1,4]二硫杂环戊烯-2-酮的SO2Cl2氯化反应可得到相应的单氯和反式二氯衍生物,这些衍生物在用KF/18-冠-6或LiBr/HMPA处理时可消除HCl,从而为不饱和乙烯基二硫代四硫富瓦烯(VDT-TTF)提供了一条简单途径。