A palladium supported on graphitic carbon nitride (Pd/g-C3N4) catalyzed carbonylative reaction of arylbromides and arylboronic acids by has been developed for the construction of diaryl ketones. Using benzene-1,3,5-triyl triformate (TFBen) as the CO source, the reaction proceeded well to give various diaryl ketones in moderate to good yields.
已开发出负载在石墨氮化碳 (Pd/gC 3 N 4 )上的钯催化芳基溴化物和芳基硼酸的羰基化反应,用于构建二芳基酮。使用苯-1,3,5-三甲酸三酯 (TFBen) 作为 CO 源,反应进行得很好,以中等至良好的产率得到各种二芳基酮。
Erbium trifluoromethanesulfonate catalyzed Friedel–Crafts acylation using aromatic carboxylic acids as acylating agents under monomode-microwave irradiation
作者:Phuong Hoang Tran、Poul Erik Hansen、Hai Truong Nguyen、Thach Ngoc Le
DOI:10.1016/j.tetlet.2014.12.038
日期:2015.1
Erbium trifluoromethanesulfonate is found to be a good catalyst for the Friedel–Craftsacylation of arenes containing electron-donating substituents using aromatic carboxylicacids as the acylating agents under microwave irradiation. An effective, rapid and waste-free method allows the preparation of a wide range of aryl ketones in good yields and in short reaction times with minimum amounts of waste
Continuous flow synthesis of diaryl ketones by coupling of aryl Grignard reagents with acyl chlorides under mild conditions in the ecofriendly solvent 2-methyltetrahydrofuran
作者:Chuan-Tao Zhang、Rui Zhu、Zheng Wang、Bing Ma、Adrian Zajac、Marcin Smiglak、Chun-Nian Xia、Steven L. Castle、Wen-Long Wang
DOI:10.1039/c8ra07447j
日期:——
efficient continuous flow sequential synthesis of diaryl ketones was achieved by coupling of aryl Grignard reagents with acyl chlorides in the bio-derived “green” solvent 2-methyltetrahydrofuran (2-MeTHF) undermild reaction conditions (ambient temperature, 1 hour), allowing a safe and on-demand generation of 2-(3-benzoylphenyl)propionitrile with a productivity of 3.16 g hour−1.
Diphenylpropionic Acids as New AT<sub>1</sub> Selective Angiotensin II Antagonists
作者:Carmen Almansa、Luis A. Gómez、Fernando L. Cavalcanti、Alberto F. de Arriba、Ricardo Rodríguez、Elena Carceller、Julián García-Rafanell、Javier Forn
DOI:10.1021/jm9508853
日期:1996.1.1
series of potent AT1 selective diphenylpropionicacid nonpeptide angiotensin II receptor antagonists are reported. The new compounds were evaluated for in vitro AT1 (rat liver) and AT2 (rat adrenal) binding affinity as well as for in vivo inhibition of angiotensin II-induced increase in mean arterial blood pressure in pithed rats. Unsaturation of the diphenylpropionicacids as well as substitution or replacement