[EN] FORMATION OF BONDS BY OUTER-SPHERE OXIDATIVE ELECTROPHILIC FLUORINATION<br/>[FR] FORMATION DE LIAISONS PAR FLUORATION ÉLECTROPHILE OXYDATIVE DE SPHÈRE EXTERNE
申请人:UNIV YORK
公开号:WO2016087879A1
公开(公告)日:2016-06-09
There is described a method of fluorination of an alkenyl, alkynyl, aryl or isonitrile compound which comprises reacting an alkenyl, alkynyl, aryl or isonitrile compound with a metal-mediated outer-sphere electrophilic fluorinating (OSEF) agent.
Highly enantioselective pyridine-directed rhodium-catalyzed asymmetric hydrogenation of challenging 1,1-diarylalkenes is achieved by using [Rh(NBD)DuanPhos]BF4 as a precatalyst. Various types of 2-pyridine substituted 1,1-diarylalkenes could be hydrogenated with good to excellent enantioselectivities, which provide an efficient route to the synthesis of pharmaceutically and biologically active compounds
Conjugate Addition–Enantioselective Protonation of <i>N</i>-Aryl Glycines to α-Branched 2-Vinylazaarenes via Cooperative Photoredox and Asymmetric Catalysis
and a dicyanopyrazine-derived chromophore (DPZ) photosensitizer that is mediated by visible light, a variety of α-branched 2-vinylpyridines and 2-vinylquinolines with N-aryl glycines underwent a redox-neutral, radical conjugate addition-protonation process and provided valuable chiral 3-(2-pyridine/quinoline)-3-substituted amines in high yields with good to excellent enantioselectivities (up to >99%
Copper-Catalyzed C–H Stereoselective Cyanation of Alkenes by Using an α-Iminonitrile as a Cyanating Reagent
作者:Yong-Ming Zhu、Zhen-Bang Chen、Qing-Qing Gao、Kui Liu
DOI:10.1055/s-0037-1610680
日期:2019.1
Abstract The first copper-catalyzed cyanation through alkene C–H bond activation by using an α-iminonitrile as a cyanating agent has been realized. The approach efficiently constructs acrylonitriles in good yields with the advantages of high regioselectivity, cost-benefit, and operational simplicity. The first copper-catalyzed cyanation through alkene C–H bond activation by using an α-iminonitrile
A radical-based asymmetric olefin difunctionalization strategy for rapidly forging all-carbon quaternarystereocenters α to diverse azaarenes is reported. Under cooperative photoredox and chiral Brønsted acid catalysis, cyclopropylamines with α-branched 2-vinylazaarenes can undergo a sequential two-step radical process, furnishing various valuable chiral azaarene-substituted cyclopentanes. The use