Efficient and catalyst-free condensation of acid chlorides and alcohols using continuous flow
作者:Frederik E. A. Van Waes、J. Drabowicz、A. Cukalovic、Christian V. Stevens
DOI:10.1039/c2gc35555h
日期:——
An efficient, catalyst-free continuous flow procedure for the condensation of acid chlorides and alcohols was developed. Different esters could be obtained using this protocol with excellent conversions starting from the corresponding acid chlorides and alcohols in very short reaction times (5–7 min). The reaction was performed solventless for liquid reagents but requires a solvent for solid reagents in order to prevent clogging of the microreactor. Since no catalyst is needed, the purification of the reaction mixture is very straightforward. Scale-up of the reaction to a microreactor with an internal volume of 13.8 ml makes it possible to produce 2.2 g min−1 of ester with an isolated yield of 98% and recuperation of the formed HCl.
NHC−Iron-Catalyzed Aerobic Oxidative Aromatic Esterification of Aldehydes using Boronic Acids
作者:João N. Rosa、R. Sudarshan Reddy、Nuno R. Candeias、Pedro M. S. D. Cal、Pedro M. P. Gois
DOI:10.1021/ol100302e
日期:2010.6.18
NHC−iron complexes prepared in situ very efficiently afforded benzoates via the aerobicoxidative aromatic esterification of aldehydes with boronic acids. This method uses equimolar amounts of both the aldehyde and the boronic acid allowing the preparation of benzoates in yields up to 97%.
NHC/Iron cooperative catalysis: aerobic oxidative esterification of aldehydes with phenols
作者:R. Sudarshan Reddy、João N. Rosa、Luís F. Veiros、Stephen Caddick、Pedro M. P. Gois
DOI:10.1039/c1ob05151b
日期:——
An NHC/iron cooperative catalytic system mediates the aerobicoxidativeesterification of aldehydes with phenols. The use of equimolar amounts of reactants led to good to excellent isolated yields of esters.
Compounds that abrogate DNA-damage-induced cell cycle G2 checkpoint and/or augment the anti-cancer activity of DNA damaging treatments
申请人:——
公开号:US20040198727A1
公开(公告)日:2004-10-07
The invention provides compositions and methods to inhibit the cell cycle G2 checkpoint, in particular the DNA-damage-induced G2 checkpoint, in mammalian cells including human cells. Specifically, the invention provides compositions and methods to sensitize cells to DNA-damaging agents by abrogating the cell cycle G2 checkpoint. Compounds of the invention are used to treat proliferative disorders such as cancer. The invention provides compositions and methods for selectively sensitizing G1 checkpoint impaired cancer cells to DNA-damaging agents and treatments.
Compounds that abrogate DNA damage induced cell cycle G2 checkpoint and/or augment anti-cancer activity of DNA-damaging treatments
申请人:Kawabe Takumi
公开号:US20060122269A1
公开(公告)日:2006-06-08
The invention provides compositions and methods to inhibit the cell cycle G2 checkpoint, in particular the DNA-damage-induced G2 checkpoint, in mammalian cells including human cells. Specifically, the invention provides compositions and methods to sensitize cells to DNA-damaging agents by abrogating the cell cycle G2 checkpoint. Compounds of the invention are used to treat proliferative disorders such as cancer. The invention provides compositions and methods for selectively sensitizing G1 checkpoint impaired cancer cells to DNA-damaging agents and treatments.