15995-14-9Relevant academic research and scientific papers
π-conjugated poly(dithiafulvene)s and poly(diselenafulvene)s: Effects of side alkyl chains on optical, electrochemical, and conducting properties
Naka, Kensuke,Uemura, Takashi,Chujo, Yoshiki
, p. 3539 - 3543 (2002)
Electron-donating π-conjugated polymers with dithiafulvene moiety (4) or with diselenafulvene moiety (5) were prepared by cycloaddition polymerization of chalcogenoketenes derived from aromatic diynes (3). The solubilities of the polymers strongly depende
α,β-UNSATURATED THIOLATES AND THEIR ANALOGS IN CYCLOADDITION REACTIONS. XV. REACTION OF 2-ARYLETHYNESELENOLATES WITH PHENYL ISOSELENOCYANATE
Zmitrovich, N. I.,Petrov, M. L.,Petrov, A. A.
, p. 154 - 157 (2007/10/02)
Potassium 2-arylethyneselenolates enter into cyclization with phenyl isoselenocyanate to form the products from 1,3-anionic cycloaddition, i.e., 2-phenylimino-4-aryl-1,3-diselenoles.Donating substituents accelerate and accepting substituents retard this reaction.If the potassium is substituted by lithium, the yield of the cyclization products is substantially reduced. 2-Phenylimino-4-aryl-1,3-diselenoles are converted by treatment with methyl iodide into 2-(N-methylphenylamino)-4-aryl-1,3-diselenolium iodides, which form 4-aryl-1,3-diselenole-2-selenones under the influence of hydrogen selenide.
UNSATURATED THIOLATES AND THEIR ANALOGS IN CYCLOADDITION REACTIONS XII. REACTIONS OF ALKALI-METAL-2-PHENYLETHYNYLSELENOLATES WITH ACETYLENIC DIPOLAROPHILES
Laishev, V. Z.,Petrov, M. L.,Petrov, A. A.
, p. 245 - 250 (2007/10/02)
The direction of the reactions of the salts of 2-phenylethynylselenols with acetylenecarboxylic esters depends on the nature of the cation.In the case of dimethyl acetylenedicarboxylate the potassium salt forms products from nucleophilic and 1,3-anionic cycloaddition, while the lithium salt and also the potassium salt in the presence of crown ether only form the cycloaddition product.In analogous reactions with methyl phenylpropiolate the potassium salt only forms the nucleophilic addition product, while the lithium salt forms products of both types.In all cases strict regiospecificity is observed.
