Benzo[a] isoindolo [1,2,3-cd]indolizines, a novel kind of 18π heterocycles, have been prepared by one pot successive 1,3-dipolar cycloadditions of pyridinium dicyanomethylides with benzyne.
A one-pot procedure for the direct and surprisingly simple formation of the title compounds by the reactions of pyridiniumdicyanomethylides with benzyne are described together with full details of the 1H and 13C NMR data for the products.
描述了通过吡啶二氰基甲基化物与苯炔反应直接和令人惊讶地简单形成标题化合物的一锅法,以及该产物的1 H和13 C NMR数据的全部详细信息。