+++3 статьи из тетраэдрона

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Unexpected formation of highly functionalized dihydropyrans via addition-cyclization reactions between dimethyl oxoglutaconate and α,β-unsaturated hydrazones
Jason E. Mullinsa, Jean-Louis G. Etogaa, Mariusz Gajewskib, Joseph I. DeGrawb and Charles M. Thompson
Tetrahedron Letters
Volume 50, Issue 20, P 2298-2300

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http://dx.doi.org/10.1016/j.tetlet.2009.02.180

Organocatalyzed enantioselective synthesis of 6-amino-5-cyanodihydropyrano[2,3-c]pyrazoles
Sanjib Gogoia and Cong-Gui Zhao
Tetrahedron Letters
Volume 50, Issue 19, P 2252-2255

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http://dx.doi.org/10.1016/j.tetlet.2009.02.210

One-pot and catalyst-free synthesis of thiosemicarbazones via multicomponent coupling reactions
Silvio Cunha, Tiago Lima da Silva
Tetrahedron Letters
Volume 50, Issue 18, P 2090-2093

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http://dx.doi.org/10.1016/j.tetlet.2009.02.134

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