The title meso-ionic compounds react thermally and photochemically with [Co(cp)] species to give dithiolatocobalt complexes. 5-Phenyl-2-(p-tolyl)-1,3-dithiolylium-4-olate gives (η5-cyclopentadieny)(1-phenyl-2-(p-tolyl)-1,2-ethylenedithiolato)cobalt(III) with high selectivity.
Formation of 2,5-Diaryl-1,3-dithiolylium-4-olate in Thermal Reaction of 4-Aryl-1,3,2-oxathiazolylium-5-olate.-Thermolysis of the mesoionic oxathiazoles (I) in xylene yields 2,5-diaryl-1,3-dithiolylium-4-olatesII) via elimination of NO and CO. ( Radical mechanism). -(TONO, M.; AOTO, H.; MATSUDAIRA, Y.; SUGIYAMA, T.; KAJITANI, M.; AKIYAMA, T.; SUGIMORI, A.; Tetrahedron Lett. 32 (1991) 32, 4023-4026; Dep. Chem., Fac. Sci. Technol., Sophia Univ., Tokyo 102, Japan; EN)
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