provides polyfunctional phosphines in good yields. Especially attractive is the hydroboration/boron-zinc exchange sequence which allows the conversion of functionalized olefins into polyfunctional phosphines in a one-pot procedure. Several new chiral phosphines have been prepared starting from readily available chiral olefins (terpenes) and their efficiency in asymmetric hydrogenation reactions has been
功能化的二
有机锌与
氯二有机膦的反应以良好的产率提供了多官能的膦。
硼氢化/
硼锌交换序列特别吸引人,它允许一锅法将官能化的烯烃转化为多官能的膦。从容易获得的手性烯烃(萜烯)开始已经制备了几种新的手性膦,并且已经评估了它们在不对称氢化反应中的效率。