The effect of substitution on heterocycle synthesis by a novel silica gel catalysed decarboxylative ring-closing reaction is shown to be stereospecific and dependent on the nature of the nitrogen substituent.
新型
硅胶催化脱羧环化反应在杂环合成中取代效应的影响表明其具有立体特异性,并且依赖于氮原子上取代基的性质。