Regioselective addition of C(sp<sup>3</sup>)–H bonds of alkyl pyridines to olefins catalysed by cationic zirconium complexes
作者:Qiu Sun、Peipei Xie、Dan Yuan、Yuanzhi Xia、Yingming Yao
DOI:10.1039/c7cc03263c
日期:——
In situ generated cationic zirconium complexes stabilized by amine-bridged bis(phenolato) ligands have been developed to catalyse C(sp3)–H addition of alkyl pyridines to olefins, which are the firstexamples of group 4 metal based catalysts in this transformation. Ligand-controlled regioselectivity was observed, which was verified by DFT study.
The present invention is directed to novel compounds of formula (I), to a process for their preparation, their use in therapy and pharmaceutical compositions comprising the novel compounds. The novel compounds are useful in therapy, and in particular for the treatment of gastroesophageal reflux disease (GERD).