Nucleophilic Dearomatization of N-Heteroaromatics Enabled by Lewis Acids and Copper Catalysis
作者:Xingchen Yan、Luo Ge、Marta Castiñeira Reis、Syuzanna R. Harutyunyan
DOI:10.1021/jacs.0c09974
日期:2020.11.25
reactivity of aromatic substrates associated with the loss of aromaticity, as well the regio- and stereoselectivities of the reaction. Here we present a catalytic system that leads to unprecedented, high-yielding dearomative C-4 functionalization of quinolines with organometallics with nearly absolute regio- and stereoselectivities and with a catalyst turnover number (TON) as high as 1000. The synergistic action
This invention provides for compounds of the formula:
wherein the variables are defined herein, or salt thereof, compositions comprising these compounds, and method for the treatment, control or prevention of a parasitic infestation or infection in an animal in need thereof by administering an effective amount of these compounds to said animal.
Thieme Chemistry Journal Awardees - Where Are They Now? Asymmetric Brønsted Acid Catalyzed Transfer Hydrogenations
作者:Magnus Rueping、Erli Sugiono、Fenja Schoepke
DOI:10.1055/s-0029-1219528
日期:2010.4
products under mild reaction conditions. 1 Introduction 2 Nature’s Reductions: Dehydrogenases as a Role Model 3 Bronsted AcidcatalyzedTransferHydrogenation of Ketimines 4 Asymmetric Organocatalytic Reduction of Quinolines 5 Asymmetric Organocatalytic Reduction of N-Heterocycles 5.1 Asymmetric Bronsted AcidCatalyzed Hydrogenationof -Indoles 5.2 Asymmetric Bronsted AcidCatalyzed Hydrogenationof Benzoxazines