These ligands can be roughly divided into two groups: those in which the camphor is annulated in the 2,3-positions to the -face of the pyridine ring and those in which the pyridine is contained as a pendent on the C2 or C3 of the camphor framework.

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In this paper, a series of 4,5-dithiacrown ether annulated 1,3-dithiole-2-thiones 8a~8d were prepared via condensing 4,5-bis-1,3-dithiole-2-thione (7) with 1,ω-dimercapto polyglycol derivatives in high dilution. The obvious template effect was found during the synthesis of 8c-8d.

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In this paper, a series of 4,5-dithiacrown ether annulated 1,3-dithiole-2-thiones 8a~8d were prepared via condensing 4,5-bis-1,3-dithiole-2-thione (7) with 1,ω-dimercapto polyglycol derivatives in high dilution. The obvious template effect was found during the synthesis of 8c-8d.

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Under high dilution,the cross-coupling reactions of 4,5-dicyano-1,3-dithiol-2-one(6) and dithia crown-ether annulated tetrathiafulvalenes(3a～3c) in toluene gave asymmetrical dicyano tetrathiafulvalene derivatives(7a～7c) in the presence of triethyl phosphite.The compounds 7a～7c were characterized by(~1HNMR,EA,MS and IR.

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annulated：有環(huán)的

annulate 由環(huán)組成的 | annulated 有環(huán)的 | annulation 環(huán)狀物

annulated：由環(huán)合成的/有環(huán)紋的

annulate /由環(huán)合成的/有環(huán)紋的/ | annulated /由環(huán)合成的/有環(huán)紋的/ | annulation /環(huán)狀構(gòu)造/

annulated column：環(huán)柱

annulated bit 環(huán)形鉆頭 | annulated column 環(huán)柱 | annulated shaft 環(huán)飾柱

annulated column：環(huán)形柱,環(huán)柱

annulated bit 環(huán)形鉆頭 | annulated column 環(huán)形柱,環(huán)柱 | annulus 円環(huán)

annulated bit：環(huán)形鉆頭

annulated 有環(huán)的 | annulated bit 環(huán)形鉆頭 | annulated column 環(huán)柱