Selective [3 + 2] Cycloaddition of Cyclopropenone Derivatives and Elemental Chalcogens
A highly efficient method is disclosed for the synthesis of 1,2-dichalcogen heterocycles via [3 + 2] cycloaddition of cyclopropenone derivatives and elemental chalcogens. Different from other cyclopropenone derivatives, cyclopropenselenones undergo unprec
The reaction of unsaturated carbonyl compounds with "activated" sulfur
In a reinvestigation of the sulfuration reaction of cinnamylideneacetophenone (1) with sulfur and triethylamine at room temperature, new products 6-benzoyl-3-phenyl-1,2-dithiolo1,2-dithiole (5), 6-benzoyl-3-phenyl-1,2-dithiine (6) and 5-benzoyl-3-b
Chiacchio, Ugo,Corsaro, Antonino,Rescifina, Antonio,Testa, Maria Gabriella,Purrello, Giovanni
p. 223 - 229
(2007/10/02)
A NEW SYNTHESIS OF 6-THIATHIOPHTHENES FROM ACETYLENIC β-DIKETONES
A new method for the synthsis of 2,5-diaryl-6-thiathiophthenes is described involving the reaction of 1,5-diarylpent-1-yne-3,5-diones with phosphorus pentasulfide.The reaction of 3-chloro-6-thiathiophthenes with hydrazine hydrate gave pyrazole derivatives
Marei, Mohamed Gaber,Mishrikey, Morcos Michael
p. 229 - 234
(2007/10/02)
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