"19"^^ . "[71DE0B742069]" . "A preparative method for synthesis of the new 3-iodo derivative was elaborated. Electrochemical behaviour of methyl 3-halo-1-benzothiophene-2-carboxylates 1-3 (chloro-, bromo-, iodo-), their reduction and dimer products 4,5 has been investigated at mercury and platinum electrodes using polarography, cyclic voltammetry and RDE methods in non-aqueous dimethylformamide. The reduction in divided cells follows the ECE mechanism, where the primary radical anion is split into halogenide anion and neutral heterocyclic radical, which is immediately reduced by the second electron and protonated. The only reduction product is the HBT (5), whereas the EDim mechanism leading to the dimeric species 4 was not observed at above conditions. Reduction of 1-3 on platinum causes formation of a blocking film on the electrode. Sonication during electrolysis successfully reactivates the electrode." . . . "2"^^ . "Synthesis and Electrochemical Reduction of Methyl 3-halo-1-benzothiophene-2-carboxylates"@en . "4"^^ . "Svoboda, J." . "Collection of Czechoslovak Chemical Communications" . . . . "Rej\u0148\u00E1k, M." . "1" . . . . . . "Synthesis and Electrochemical Reduction of Methyl 3-halo-1-benzothiophene-2-carboxylates" . . "0010-0765" . . . "Synt\u00E9za a elektrochemick\u00E1 redukce methyl-3-halo-1-benzothiofen-2-carboxyl\u00E1t\u016F"@cs . "halobenzothiophenes; voltammetry; biaryls"@en . . "Kl\u00EDma, Ji\u0159\u00ED" . . "Elektrochemicky byla prostudov\u00E1na redukce 3-halo-1-benzothiofen-2-carboxyl\u00E1t\u016F 1-3 (chloro-, bromo-, jodo-), jejich dim\u00E9r\u016F a reduk\u010Dn\u00EDch produkt\u016F (4,5) na rtu\u0165ov\u00FDch a platinov\u00FDch elektrod\u00E1ch v bezvod\u00E9m dimethylformamidu pomoc\u00ED polarografie, cyklick\u00E9 voltametrie a voltametrie na RDE. (Za t\u00EDmto \u00FA\u010Delem byla vypracov\u00E1na syntetick\u00E1 metoda pro p\u0159\u00EDpravu nov\u00FDch 3-jodo deriv\u00E1t\u016F.) Redukce l\u00E1tek 1-3 prob\u00EDh\u00E1 ECE mechanismem. Na platinov\u00FDch elektrod\u00E1ch se p\u0159i redukci tvo\u0159\u00ED film pasivuj\u00EDc\u00ED elektrodu. Sonikace b\u011Bhem elektrol\u00FDzy \u00FA\u010Dinn\u011B odstra\u0148uje blokuj\u00EDc\u00ED vrstvu a reaktivuje elektrodu."@cs . "RIV/61388955:_____/04:00101018!RIV/2005/AV0/A54005/N" . . "Ludv\u00EDk, Ji\u0159\u00ED" . "CZ - \u010Cesk\u00E1 republika" . "69" . . . "Synthesis and Electrochemical Reduction of Methyl 3-halo-1-benzothiophene-2-carboxylates" . "Synt\u00E9za a elektrochemick\u00E1 redukce methyl-3-halo-1-benzothiofen-2-carboxyl\u00E1t\u016F"@cs . "Synthesis and Electrochemical Reduction of Methyl 3-halo-1-benzothiophene-2-carboxylates"@en . "RIV/61388955:_____/04:00101018" . . "589327" . "242;260" . "A preparative method for synthesis of the new 3-iodo derivative was elaborated. Electrochemical behaviour of methyl 3-halo-1-benzothiophene-2-carboxylates 1-3 (chloro-, bromo-, iodo-), their reduction and dimer products 4,5 has been investigated at mercury and platinum electrodes using polarography, cyclic voltammetry and RDE methods in non-aqueous dimethylformamide. The reduction in divided cells follows the ECE mechanism, where the primary radical anion is split into halogenide anion and neutral heterocyclic radical, which is immediately reduced by the second electron and protonated. The only reduction product is the HBT (5), whereas the EDim mechanism leading to the dimeric species 4 was not observed at above conditions. Reduction of 1-3 on platinum causes formation of a blocking film on the electrode. Sonication during electrolysis successfully reactivates the electrode."@en . "P(GA202/02/0840), P(IAA4040304), Z(AV0Z4040901), Z(MSM 223100001)" . .