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Patrick J. Crowley Urs Müller Olivia-A. Sageot Alexander Bartovi? 《Tetrahedron letters》2010,51(19):2652-2654
Novel trisubstituted pyrido[3,2-e][1,2,4]triazines have been found to possess similar biological activity to the corresponding pyridopyrazine fungicides against important phytopathogens such as Mycosphaerella graminicola (wheat leaf blotch), Magnaporthe grisea (rice blast), and Rhizoctonia solani (rice sheath blight). They have been prepared for the first time from a monocyclic triazine by Niementowski-type ring condensation. 相似文献
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Natalia P. Belskaia Tatyana G. Deryabina Alexandr V. Koksharov Mikhail I. Kodess Wim Dehaen Albert T. Lebedev Vasiliy A. Bakulev 《Tetrahedron letters》2007,48(52):9128-9131
3-Allyl- and 3-prop-1-ynylsulfanyl-2-arylazo-3-cycloalkylamino-acrylonitriles undergo cyclization under mild conditions to afford the novel heterocyclic systems 1,4,6,7,8,8a-hexahydropyrrolo[2,1-c][1,2,4]-triazine-4-thione, 1,4,6,7,9,9a-hexahydro-[1,4]oxazino[3,4-c][1,2,4]triazine and 1,6,7,8,9,9a-hexahydro-4H-pyrido[2,1-c][1,2,4]triazine via a number of consecutive pericyclic reactions. 相似文献
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