Palladium-Catalyzed Tandem Reactions To Form 1-Vinyl-1<i>H</i>-isochromene Derivatives<sup>1</sup>
作者:Roger Mutter、Ian B. Campbell、Eva M. Martin de la Nava、Andy T. Merritt、Martin Wills
DOI:10.1021/jo0011991
日期:2001.5.1
also an essential choice as it furnishes the appropriate reactivity to promote allylic substitution after the aryl coupling process. The use of more effective leaving groups, such as acetate, results in reaction of the allylic group, and no aryl coupling is observed. Through the appropriate selection of phosphine ligand and solvent, either the cyclized isochromene product or the noncyclized intermediate