First use of a palladium complex with a thiosemicarbazone ligand as catalyst precursor for the Heck reaction
作者:Dimitra Kovala-Demertzi、Paras N. Yadav、Mavroudis A. Demertzis、Jerry P. Jasiski、Fotini J. Andreadaki、Ioannis D. Kostas
DOI:10.1016/j.tetlet.2004.02.062
日期:2004.3
A novel palladium complex with salicylaldehyde N(4)-ethylthiosemicarbazone has been synthesized and according to its crystal structure the ligand is bound to the metal in an O, N, S-terdentate coordinationmode. This phosphorus-free system efficiently catalyzes the Heckreaction of aryl bromides (from electron-rich to electron-poor) with styrene under argon, with turnover numbers of up to 43,000, at
The present invention relates to a cellulose acetate film used for optical compensation and a retardation enhancer used therein, and relates to a cellulose acetate film which has a high retardation value in the thickness direction (Rth).
The present invention relates to a compound of general formula (I) or a pharmaceutically acceptable salt or solvate or thereof. In particular, the present invention relates to a method treating diseases involving cell proliferation, migration, apoptosis, or adhesion, comprising administering to a human or non-human mammalian patient an effective amount of a compound of general formula (I) or a pharmaceutically acceptable salt or solvate or thereof.
The present invention relates to a compound of general formula (I) or a pharmaceutically acceptable salt or solvate or thereof. In particular, the present invention relates to a method treating diseases involving cell proliferation, migration, apoptosis, or adhesion, comprising administering to a human or non-human mammalian patient an effective amount of a compound of general formula (I) or a pharmaceutically acceptable salt or solvate or thereof.