Synthesis, characterization, and structure of some new substituted 5,6-fused ring pyridazines

Snyder C.A.; Tice N.C.; Sriramula P.G.; Neathery J.L.; Mobley J.K.; Phillips C.L.; Preston A.Z.; Strain J.M.; Vanover E.S.; Starling M.P.; Sahi N.V.

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Synthesis, characterization, and structure of some new substituted 5,6-fused ring pyridazines

机译：一些新的取代的5,6-稠合环哒嗪的合成，表征和结构

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Pyridazines are an important class of heterocyclic compounds as a result of their materials and commercial applications. The synthesis of 5,6-fused ring pyridazines 2a-h from 1,2-diacylcyclopentadienes (fulvenes) 1a-h is described herein. This route was quite general, and features an efficient and convenient two-step synthesis of a series of 5,6-fused ring 1,2-disubstituted pyridazines using enolized 1,2-disubstituted fulvenes in a methanolic solution of hydrazine. Full characterization of newly formed fulvene 1e and pyridazines 2a-h are reported. Single-crystal X-ray analysis confirms the molecular structure of pyridazine 2f, which displayed the expected pyridazine fused to the cyclopentadienyl moiety. Adding to their real world capabilities in electronic devices, compounds 2a-h display reasonably high stability in solution and in air at room temperature.

机译：由于其材料和商业应用，哒嗪是一类重要的杂环化合物。本文描述了由1，2-二酰基环戊二烯（富勒烯）1a-h合成5，6-稠合的环哒嗪2a-h。该途径是相当普遍的，并且具有在肼的甲醇溶液中使用烯化的1,2-二取代的富勒烯有效且方便的两步合成一系列5,6-稠合的环1,2-二取代的哒嗪的过程。报告了新形成的富烯1e和哒嗪2a-h的完整特征。 X射线单晶分析证实了哒嗪2f的分子结构，显示了预期的哒嗪与环戊二烯基部分融合。除了在电子设备中的实际功能外，化合物2a-h在溶液和室温下的空气中显示出相当高的稳定性。

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《Synthetic Communications》 |2011年第9期|共13页
作者
Snyder C.A.; Tice N.C.; Sriramula P.G.; Neathery J.L.; Mobley J.K.; Phillips C.L.; Preston A.Z.; Strain J.M.; Vanover E.S.; Starling M.P.; Sahi N.V.;
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正文语种 eng
中图分类有机化学;
关键词
Fulvenes; heterocyclic; NMR; pyridazines; X-ray crystallography;

机译：氟烯;杂环;NMR;哒嗪;X射线晶体学;

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Synthesis, characterization, and structure of some new substituted 5,6-fused ring pyridazines

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