Enantioselective Rh-Catalyzed Anti-Markovnikov Hydroformylation of 1,1-Disubstituted Allylic Alcohols and Amines: An Efficient Route to Chiral Lactones and Lactams
作者:Cai You、Shuailong Li、Xiuxiu Li、Hui Lv、Xumu Zhang
DOI:10.1021/acscatal.9b02667
日期:2019.9.6
Rh-catalyzed highly enantioselective anti-Markovnikov hydroformylation of 1,1-disubstituted allylic alcohols and amines has been achieved. By using a chiral hybrid phosphorus ligand, a series of challenging 1,1-disubstituted allylic alcohols and amines were transformed to valuable chiral lactones and lactams with good yields and high enantioselectivities (up to 90% yield and 93% enantiomeric excess
已经实现了Rh催化的1,1-二取代的烯丙基醇和胺的高对映选择性的反马尔科夫尼科夫加氢甲酰基化。通过使用手性杂化磷配体,将一系列具有挑战性的1,1-二取代的烯丙醇和胺转化为有价值的手性内酯和内酰胺,具有良好的收率和高对映选择性(高达90%的收率和93%的对映体过量(ee))在非常温和的反应条件下(50°C,CO / H 2 = 2.5 / 2.5 bar)。此外,还实现了克级反应和多种合成转化,证明了该方法的广泛合成效用。