Enantioselective para-C(sp2)-H Functionalization of Alkyl Benzene Derivatives via Cooperative Catalysis of Gold/Chiral Bronsted Acid

04 May 2022, Version 1
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

Herein, we developed an asymmetric para-C(sp2)-H bond functionalization of alkyl benzene derivatives via cooperative catalysis of gold and chiral phosphoric acid, leading to synthetically useful diaryl chiral centers. In this transformation, chiral phosphoric acid, ligand, and molecular sieves were all crucial for enantioselectivity control. The salient features of this protocol include mild conditions, high efficiency, readily avail-able starting materials, highly chemo- and site- as well as enantioselective aromatic C−H functionalization, broad substrate scope, and exten-sive applications of the chiral products. The mechanistic studies showed that one gold complex and two CPAs might be involved in the chiral induction.

Keywords

gold
chiral phosphoric acid
asymmetric catalysis
C-H bond functionalization
benzene derivatives

Supplementary materials

Title
Description
Actions
Title
SI
Description
supporting information
Actions

Comments

Comments are not moderated before they are posted, but they can be removed by the site moderators if they are found to be in contravention of our Commenting Policy [opens in a new tab] - please read this policy before you post. Comments should be used for scholarly discussion of the content in question. You can find more information about how to use the commenting feature here [opens in a new tab] .
This site is protected by reCAPTCHA and the Google Privacy Policy [opens in a new tab] and Terms of Service [opens in a new tab] apply.