Thiazines dithiazolo

Several thioureas have been synthesized by ring-opening reactions of heterocyclic compounds such as l,3-dithiolan-2-thiones, 5-arylimino-l,2,4-dithiazolidine-3-thiones, benzoxazole-2-thiones, and 3,1-benzo-thiazine-4-thione derivatives. Similarly, the action of triphenylphosphine on 5-amino-l,2,4-dithiazolo-3-thiones gave thiocarbamoyl isothiocyanates (304). Other thioureas have been obtained by thermolytic decarbonylation of 2-amino-5(4H)-thiazolones and by treatment of 4,5,6,7-tetrahydro-cyclopenta-l,3-dioxin-4-one" and 3-nitrophthalic anhydride with thiourea. ... 

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See also in sourсe #XX -- [ ]

See also in sourсe #XX -- [ ]

See also in sourсe #XX -- [ , ]

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