Intramolecular Diels-Alder reactions of 1,2,4-triazines: Synthesis of tricyclic condensed pyridines and pyrazines
作者:Edward C. Taylor、Larry G. French
DOI:10.1016/s0040-4039(00)84423-8
日期:1986.1
Syntheses of several 6,6,6-tricyclic condensed pyridines and pyrazines utilizing intramolecular Diels-Alder reactions of 1,2,4-triazines with alkyne and nitrile dienophiles are detailed. The cyclizations are facilitated by the presence of conformationally restrictive planar aromatic rings in the chain tethering the diene and the dienophile.
详细介绍了利用1,2,4-三嗪与炔烃和腈双亲二烯物的分子内Diels-Alder反应合成数种6,6,6-三环缩合吡啶和吡嗪的方法。通过束缚二烯和亲二烯体的链中存在构象限制性的平面芳族环来促进环化。