The invention is directed to novel heterofulvene geminal dithiolate compounds and their selenium and tellurium analogs having the general formula
wherein X is selected from S, Se and Te. R is selected from hydrogen, alkyl, aryl, or together forming a ring of carbon or hetero atoms, cyano and dithiocarbonate groups and R1 is selected from alkali, alkaline earth and transition metals, quaternary ammonium, alkyl, acyl, cyclic and heterocyclic groups, or together forming a ring.
The novel method of preparing these compounds involves the reaction of a cis-dicyanotetraheterofulvalene derivative with two equivalents of an organic sulfide, selenide or telluride compound, eventually followed by reacting the reaction product with two equivalents of an organic halogenide. The new compounds are key synthetic intermediates for the preparation of tetrathiafulvalene derivatives and tetraselenafulvalene derivatives which are useful in optical printing of conducting patterns, in electrochromic displays and in high resolution lithography.
本发明涉及具有通式的新型杂
富烯宝石级二
硫酸盐化合物及其
硒和
碲类似物。
其中 X 选自 S、Se 和 Te。R 选自
氢、烷基、芳基或由
碳原子或杂原子、
氰基和二
硫代
碳酸酯基团共同形成的环,R1 选自碱
金属、碱土
金属和过渡
金属、季
铵、烷基、酰基、环状基团和杂环基团或共同形成的环。
制备这些化合物的新方法是将顺式二
氰基四杂
环戊烯衍
生物与两当量的有机
硫化物、
硒化物或
碲化物反应,最后再将反应产物与两当量的有机卤化物反应。这些新化合物是制备四噻富
戊二烯衍
生物和四
硒富
戊二烯衍
生物的关键合成
中间体,可用于导电图案的光学印刷、电致变色显示和高分辨率光刻。