Synthesis and applications of diphosphine ligands derived from the lignan hydroxymatairesinol
作者:Yury Brusentsev、Patrik Eklund
DOI:10.1016/j.cattod.2014.02.032
日期:2015.3
to DIOP were developed. Catalytic activity and induction of enantioselectivity for the prepared phosphines were evaluated in rhodium catalyzed hydrogenations of different functionalized alkenes. High catalytic activities were observed with low catalyst loading at atmospheric pressure. The phosphines showed moderate to high enantioselectivity depending on the substrate used. Hydrogenation of 1-acetamidostyrene
开发了一种高效的方法,用于将天然木脂素羟基苦参醇合成修饰为类似于DIOP的手性二膦。在铑催化的不同官能化烯烃的加氢反应中,对制备的膦的催化活性和对映选择性的诱导进行了评估。在大气压下以低催化剂负载观察到高催化活性。根据所使用的底物,膦显示出中等至高的对映选择性。1-乙酰氨基苯乙烯的氢化得到84%ee的S-对映体。