Divergent Synthesis of
<i>β</i>
‐Hydroxy Amides (Esters) and
<i>γ</i>
‐Amino Alcohols via Ir/
<i>f</i>
‐Diaphos Catalyzed Asymmetric Hydrogenation
作者:Xianghua Zhao、Zehui Yang、Yuqi Cheng、An Huang、Fangyuan Hu、Fei Ling、Weihui Zhong
DOI:10.1002/adsc.202200524
日期:2022.9.6
The iridium/f-diaphos L2 or L9 catalyzed asymmetric hydrogenation of β-aryl β-keto amides (esters), and β-amino ketones to afford two enantiomers of the desired chiral alcohols was realized with 90%-99% yield and 73%-99% ee. This protocol could be easily conducted on gram scale in the presence of low catalyst loading (up to 9900 TON). Moreover, the hydrogenated products are versatile building blocks
铱/ f-二磷L2或L9催化的β-芳基β-酮酰胺(酯)和β-氨基酮的不对称氢化以提供所需手性醇的两种对映异构体,产率分别为 90%-99% 和 73% -99% EE。在低催化剂负载(高达 9900 TON)的情况下,该协议可以轻松地以克级进行。此外,氢化产物是多种生物活性分子和药物的通用构件,如氟西汀、达泊西汀等。