Recognition-Mediated Facilitation of a Disfavored Diels−Alder Reaction
作者:Raphaël Bennes、Douglas Philp、Neil Spencer、Benson M. Kariuki、Kenneth D. M. Harris
DOI:10.1021/ol9908880
日期:1999.10.1
[GRAPHICS]The rational design of a system which is capable of accelerating and facilitating a thermodynamically disfavored Diets-Alder cycloaddition between a furan and a maleimide is presented. The origins of the acceleration and facilitation of the cycloaddition reaction are traced by kinetic studies-allied to results from H-1 NMR spectroscopy and X-ray crystallography-to the formation of strong intramolecular hydrogen bonds in the cycloadduct.