CjtfSjg Intermediates in the Synthesis of PoIy ( Carbon Sulfide )
نویسنده
چکیده
(PPN)2C 16S18 was obtained by the addition of PPN+C1_ to a methanolic extract of Na2C4Sv, de rived from the reaction of C6S80 2 and NaOMe. Centrosymmetric C 16Si84consists of thiophene units unsymmetrically fused to two 1,4-dithiin rings. Solutions of C 16S]84~ convert to C8S82~ with heating. When C4S* (x ~ 8) is reduced by Na/NH3 followed by extraction and crystallization, one ob tains the bicyclic polysulfide C4S82~, crystallized as its PPh4+ salt.
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