Substituent Effects in Carboni-Lindsey Reactions of 1,2,4,5-Tetrazines and Aryl-Substituted Alkynylboronates
作者:Joseph Harrity、Matthew Helm、Andrew Plant
DOI:10.1055/s-2007-991064
日期:——
Evidence for an inverse-electron-demand cycloaddition of tetrazines with alkynylboronates is presented by the reaction of 3,6-bis(3,5-dimethyl-1H-pyrazol-1-yl)-1,2,4,5-tetrazine with arylalkynylboronate substrates bearing various para substituents.
通过 3,6-双(3,5-二甲基-1H-吡唑-1-基)-1,2,4,5-四嗪与带有各种对位取代基的芳基炔硼酸酯底物的反应,证明了四嗪与炔硼酸酯的反电子需求环加成反应。