The Heck reaction of cinnamyl alcohols with aryl iodides has been investigated using n-Bu4NOAc as the base in toluene. Under these conditions, the reaction affords regio- and stereoselectively (Z)-2,3-diarylallylic alcohols in moderate to good yields. Experimental evidence suggests that the observed selectivity in formation of the vinylic substitution products is kinetic in origin under these conditions and that both the base and the solvent play a key role.
辛烯醇与芳基
碘化物的赫克反应已在
甲苯中使用四丁基
氨基
乙酸钠作为碱进行了研究。在这些条件下,该反应以区位选择性和立体选择性合成(Z)-2,3-二芳基
丙烯醇,产率中等至良好。实验证据表明,在这些条件下,观察到的烯烃取代产物的选择性源于动力学,并且碱和溶剂在此过程中起着关键作用。