Уважаемые коллеги, помогите, пожалуйста, скачать несколько статеек с сайнсдиректа, буду очень признателен:
1. Atindra D. Shukla, Brenda Whittle, Hari.C. Bajaj, Amitava Das and Michael D. Ward. Dinuclear complexes of a new bridging ligand containing 2,2′-bipyridyl and dioxolene binding sites: syntheses, electrochemical and electronic spectroscopic properties. Inorganica Chimica Acta, Volume 285, Issue 1, 2 February 1999, Pages 89-96.
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http://dx.doi.org/10.1016/S0020-1693(98)00324-7
2. Jean-Bernard Regnouf-de-Vains* and Roger Lamartine. Wittig reaction on calixarene upper rim. Access to conjugated bipyridyl and pyridyl podands. Tetrahedron Letters, Volume 37, Issue 35, 26 August 1996, Pages 6311-6314.
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http://dx.doi.org/10.1016/0040-4039(96)01348-2
3. John E. Butler Ransohoff and Heinz A. Staab. En route to hexaaza-kekulene. Tetrahedron Letters, Volume 26, Issue 50, 1985, Pages 6179-6182.
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http://dx.doi.org/10.1016/S0040-4039(00)95046-9
4. Thomas Le Bouder, Philippe Massiot and Hubert Le Bozec. Synthesis and coordination studies of new mono- and dihydroxy functionalized 4,4′-dialkenyl-2,2′-bipyridines. Tetrahedron Letters, Volume 39, Issue 38, 17 September 1998, Pages 6869-6872.
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http://dx.doi.org/10.1016/S0040-4039(98)01499-3
5. Synthesis, optical, and thermal properties of conjugated, bispyridyl and tetrapyridyl compounds by Knoevenagel reaction.
Pradip K. Bhowmik, Alexi K. Nedeltchev and Haesook Han. Tetrahedron Letters, Volume 48, Issue 31, 30 July 2007, Pages 5383-5387.
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http://dx.doi.org/10.1016/j.tetlet.2007.06.019
