Chemistry of Heterocyclic Compounds p. 1306 - 1314 (1997)
Update date:2022-07-29
Topics:
Sipyagin
Kolchanov
Lebedev
Karakhanova
The reactions of isomeric tetrachlorocyanopyridines with potassium ethylxanthate were studied. It was found that tetrachloro-2-cyanopyridine was converted successively into 4-mono- and then 3,4-bisethylxanthate derivatives. In the presence of potassium ethylxanthate the last derivative undergoes intramolecular cyclization with the formation of derivatives of 1,3-dithiolo[4,5-c]pyridine. In the case of other initial polychloropyridines processes involving substitution of the chlorine atoms by the ethylxanthate fragment, sometimes accompanied by the loss of COS molecules, were observed instead of heterocyclization.
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Doi:10.1021/jo01140a016
(1952)Doi:10.1007/BF00959951
()Doi:10.1016/0022-328X(84)80162-X
(1984)Doi:10.1021/acs.cgd.7b00121
(2017)Doi:10.1016/S0040-4020(01)92488-3
(1971)Doi:10.1039/P19720002765
(1972)