Zn(OH)2-catalyzed allylation reactions of allylboronates with aldehydes proceeded smoothly in aqueous media; when α-substituted allylboronates were employed, the α-addition products were obtained exclusively, and syn-adducts were formed selectively in most cases; the use of Zn(OH)2 with dmp (ligand) in aqueous media is the key to these reactions.
Zn(OH)2催化的烯丙基
硼酸酯与醛的烯丙基化反应在
水相中顺利进行;当采用α-取代的烯丙基
硼酸酯时,仅获得α-加成产物,并且大多数情况下选择性地形成顺式加合物;在
水相中使用Zn(OH)2与dmp(
配体)是这些反应的关键。