Ru-Catalyzed Chemo- and Enantioselective Hydrogenation of β-Diketones Assisted by the Neighboring Heteroatoms
作者:Wanfang Li、Bin Lu、Xiaomin Xie、Zhaoguo Zhang
DOI:10.1021/acs.orglett.9b01829
日期:2019.7.19
A highly chemo- and enantioselectivehydrogenation of β-diketones was achieved by using [Ru(benzene)(S)-SunPhosCl]Cl for consistency in THF. The neighboring heteroatoms played important roles in guaranteeing the reactivity and controlling the chemoselectivity. These results suggested a potential approach for the clean and facile synthesis of functionalized chiral β-hydroxy ketones, which could otherwise
Tandem C–N Bond Formation through Condensation and Metal-Free <i>N</i>-Arylation: Protocol for Synthesizing Diverse Functionalized Quinoxalines
作者:Yan-Xiao Jiao、Ling-Ling Wu、Hai-Miao Zhu、Jiang-Ke Qin、Cheng-Xue Pan、Dong-Liang Mo、Gui-Fa Su
DOI:10.1021/acs.joc.7b00011
日期:2017.4.21
Diverse functionalized quinoxalines were synthesized in good yields from arylamines and readily available β-keto oximes through condensation and metal-free N-arylation. The reaction was compatible with various functional groups, such as halides, cyano, and esters. A mechanism was proposed based on the experimental results. These quinoxalines were easily obtained on a gram scale and converted to various
Synthesis and Characterization of Polycarbonyl Compounds via their BF<sub>2</sub>-Adducts
作者:Laura Kersten、Stefan Roesner、Gerhard Hilt
DOI:10.1021/ol102083v
日期:2010.11.5
A cobalt-catalyzed 1,4-hydrovinylation reaction is the key step in the synthesis of 1,3-dicarbonyl and higher tri- and tetracarbonyl compounds after ozonolysis of the 1,4-diene intermediates. For the isolation and characterization of the products, the 1,3-dicarbonyl subunits were complexed with a BF2- or a BR2-fragment eliminating the keto−enol tautomerisation. Other 2,3-disubstituted 1,3-butadienes
[DE] ACETOACETYLIERUNG VON ALKOHOLEN, THIOLEN UND AMINEN IM MIKROREAKTOR<br/>[EN] ACETOACETYLATION OF ALCOHOLS, THIOLS AND AMINES IN A MICROREACTOR<br/>[FR] ACETOACETYLATION D'ALCOOLS, DE THIOLES ET D'AMINES DANS DES MICROREACTEURS
申请人:CLARIANT GMBH
公开号:WO2004067492A1
公开(公告)日:2004-08-12
Verfahren zur Herstellung von β-Ketocarbonsäurederivaten der Formel (I) oder Salzen davon, wobei X gleich NR‘, O oder S ist; R, R‘, R1-R4 unabhängig voneinander H, Alkyl, Alkenyl, Aryl oder Heteroaryl sind, durch Umsetzung eines Diketens der Formel (II) mit einer aktiven Wasserstoff enthaltenden Verbindung der Formel ROH, NHRR‘ oder RSH, dadurch gekennzeichnet, dass man die Umsetzung kontinuierlich in einem Mikroreaktor duchführt.
METHOD FOR PRODUCING ORGANIC COMPOUND AND ORGANIC COMPOUND OBTAINED BY THE METHOD
申请人:Enomura Masakazu
公开号:US20110178199A1
公开(公告)日:2011-07-21
Disclosed herein are a reaction method and a production method of an organic compound which are capable of achieving high reaction selectivity according to the purpose and a high production rate of a target substance. The methods include at least two fluids, wherein at least one kind of the fluids is a fluid containing at least one organic compound and at least one kind of the fluids other than the above fluid is a fluid containing at least one reactant in the form of a liquid or solution, and the respective fluids join together in a thin film fluid foamed between processing surfaces arranged to be opposite to each other so as to be able to approach to and separate from each other, at least one of which rotates relative to the other, whereby an organic reaction is performed in the thin film fluid.