| 摘要 |
FIELD: chemical industry. SUBSTANCE: tetrathiafulvalene (6) derivatives are used as organic conductors, organic superconductors, organic magnetic or like materials. Claimed method of preparing tetrathiafulvalene of formula I: <EMI ID=0.94 HE=24 WI=84 TI=CHI> wherein R and R are alkyl, aralkyl, alkene, alkoryl, hydroxyalkyl, trimethylsilyl and trimethylsilylethoxymethyl and when R and R are bonded to form ring, they are alkylene, dimethylenethio, dimethylenoether. Compound 1 is prepared by single reactor and single stage method without generation of difficultly removable by-products and hence with high yield and high purity for short period of time: one of two rings 1,3,4,6-tetrathiapentene -2,5-dione is selectively detached in alcoholic solution containing alkali metal methoxide in inert atmosphere at 30 C or lower. The resulting 1,3-diol-2-one-4,5-dithiolate dianion is reacted with compound having monovalent or divalent group which corresponds to R and R in formula I. Derivatives of formula (I) are prepared using above-indicated stage for preparing precursor and stage of reaction combination of two precursor molecules to obtain tetrathiafulvalene derivative with high yield and for short period of time. EFFECT: more efficient preparation method. 11 cl, 1 dwg, 8 exl
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