Palladium-Catalyzed Vicinal Amino Alcohols Synthesis from Allyl Amines by In Situ Tether Formation and Carboetherification
作者:Ugo Orcel、Jerome Waser
DOI:10.1002/anie.201500636
日期:2015.4.20
Vicinal amino alcohols are important structural motifs of bioactive compounds. Reported herein is an efficient method for their synthesis based on the palladium‐catalyzed oxy‐alkynylation, oxy‐arylation, or oxy‐vinylation of allylic amines. High regio‐ and stereoselectivity were ensured through the in situ formation of a hemiaminal tether using the cheap commercially available trifluoroacetaldehyde
邻氨基氨基醇是生物活性化合物的重要结构基序。本文报道的是一种基于钯催化的烯丙基胺的氧代炔基化,氧代芳基化或氧乙烯基化的合成方法。通过使用廉价的半缩醛形式的市售三氟乙醛原位形成Hemiaminal系链,可确保较高的区域选择性和立体选择性。所获得的化合物是重要的结构单元,可以对其进行正交脱保护以得到游离的醇,胺或末端炔烃。