[3 + 3]-Cycloaddition of Donor–Acceptor Cyclopropanes with Nitrile Imines Generated in Situ: Access to Tetrahydropyridazines
作者:Lennart K. B. Garve、Martin Petzold、Peter G. Jones、Daniel B. Werz
DOI:10.1021/acs.orglett.5b03598
日期:2016.2.5
Donor–acceptor cyclopropanes are reacted under the influence of a Lewis acid with hydrazonyl chlorides to afford tetrahydropyridazines. Formally, this transformation can be regarded as a [3 + 3]-cycloaddition of three-membered rings and nitrile imines generated in situ. This efficient method provides fast access to a variety of structurally diverse pyridazine derivatives. The structure of a typical product was
供体-受体环丙烷在路易斯酸的影响下与酰氯反应,得到四氢哒嗪。从形式上讲,该转化可视为原位生成的三元环和腈亚胺的[3 + 3]环加成。这种有效的方法提供了快速访问各种结构多样的哒嗪衍生物的方法。通过X射线晶体学确认典型产物的结构。