Reference

A general approach to selective functionalization of 1,2,4-triazines using organometallics in palladium-catalyzed Cross-coupling and addition reactions

A general approach to selective functionalization of 1,2,4-triazines using organometallics in palladium-catalyzed Cross-coupling and addition reactions. Alphonse, France-Aimee; Suzenet, Franck; Keromnes, Anne; Lebret, Bruno; Guillaumet, Gerald (Institut de Chimie Organique et Analytique (ICOA), LRC M09, CNRS FR 2708, UMR-CNRS 6005, Universite d'Orleans, Orleans 45067/2, Fr.). Synthesis, (17), 2893-2899 (English) 2004 Georg Thieme Verlag. CODEN: SYNTBF. ISSN: 0039-7881. DOCUMENT TYPE: Journal CA Section: 28 (Heterocyclic Compounds (More Than One Hetero Atom)) A selective way to obtain disubstituted 1,2,4-triazines, e.g.There are some commonly used reagents with their cas registry numbers 6165-68-0 and 28735-27-5 in this article., I, in good yields by combining addn. reactions and palladium-catalyzed cross-coupling reactions of organometallics with 3-methylsulfanyl-1,2,4-triazine is described. .

Synthesis and complete NMR spectral assignment of thiophene-substituted sulfinyl monomers

Synthesis and complete NMR spectral assignment of thiophene-substituted sulfinyl monomers. Henckens, Anja; Adriaensens, Peter; Gelan, Jan; Lutsen, Laurence; Vanderzande, Dirk (Laboratory for Organic and Polymer Chemistry, Limburgs Universitair Centrum, IMO, Division Chemistry, Diepenbeek B-3590, Belg.). Magnetic Resonance in Chemistry, 42(11), 931-937 (English) 2004 John Wiley & Sons Ltd. CODEN: MRCHEG. ISSN: 0749-1581. DOCUMENT TYPE: Journal CA Section: 22 (Physical Organic Chemistry) Section cross-reference(s): 35, 77 This paper describes the synthesis of thiophene-substituted sulfinyl monomers. It comprises a four-step reaction by which the thiophene unit is built in via Suzuki coupling. These monomers could be used as building blocks for the prepn. of conducting polymers via a new concept: the sulfinyl precursor route i.Several substances like 6165-68-0 may be metioned in this study.e. via thiophene substituted poly(p-phenylenevinylene) precursors. Furthermore, the complete 1H and 13C NMR signal assignment is presented. In addn. to being essential for the characterization of the polymers concerned, it offers useful input information for further improvement of chem. shift prediction software. Furthermore, the T1C relaxation decay times are demonstrated to have the potential of being a fast and robust criterion for the spectral assignment of analogous monomers. .