Facile Synthesis of Versatile Enantioenriched α-Substituted Hydroxy Esters through a Brønsted Acid Catalyzed Kinetic Resolution
作者:Ghassan Qabaja、Jennifer E. Wilent、Amanda R. Benavides、George E. Bullard、Kimberly S. Petersen
DOI:10.1021/ol400207t
日期:2013.3.15
An efficient synthesis of enantioenriched α-substituted γ-hydroxy esters via a kinetic resolution event is described. Bulky racemic esters in the presence of a chiral Brønsted acid selectively lactonize to yield a recoverable enantioenriched hydroxy ester and lactone. These esters are highly versatile building blocks that can readily be converted to synthetically useful materials.
Enantioselective process for preparing arylated lactones and derivatives
申请人:——
公开号:US20030225282A1
公开(公告)日:2003-12-04
This invention provides a process for the arylation of lactones to form to chiral and achiral aryllactones having high enantioselectivity where applicable.
这项发明提供了一种过程,用于将内酯芳基化,形成手性和非手性芳基内酯,在适当情况下具有高对映选择性。
Nickel-BINAP Catalyzed Enantioselective α-Arylation of α-Substituted γ-Butyrolactones
作者:Dirk J. Spielvogel、Stephen L. Buchwald
DOI:10.1021/ja017545t
日期:2002.4.1
A Ni(0)-BINAP system is utilized for the highly enantioselective alpha-arylation of alpha-substituted gamma-butyrolactones with aryl chlorides and bromides. alpha-Quaternization is achieved in moderate to excellent yields. Furthermore, the rate accelerating effect caused by the addition of Zn(II) salts is investigated.
Hoveyda, Amir H.; Lombardi, Pamela J.; O'Brien, Robert V., Journal of the American Chemical Society, 2009, vol. 131, p. 8378 - 8379
作者:Hoveyda, Amir H.、Lombardi, Pamela J.、O'Brien, Robert V.、Zhugralin, Adil R.