Metal-Free Borane-Catalyzed Highly Stereoselective Hydrogenation of Pyridines
摘要:
A metal-free direct hydrogenation of pyridines was successfully realized by using homogeneous borane catalysts generated from alkenes and HB(C6F5)(2) via in situ hydroboration. The reaction affords a broad range of piperidines in high yields with excellent cis stereoselectivities.
presents the first example of the Pd-catalyzed cascade reactions of 5-oxohexanenitrile with arylboronicacids, affording important synthon 2-methylpyridines that can be further translated through C(sp3)-H functionalization to construct pyridine derivatives. Furthermore, this chemistry allows 5-oxo-5-arylpentanenitrile to react with arylboronicacids to provide unsymmetrical 2,6-diarylpyridines. This protocol
[EN] HETEROCYCLIC COMPOUNDS, IN PARTICULAR 2-OXO-4,4,5,5,6,6,7,7-OCTAHYDROBENZOXAZOLE DERIVATIVES, AND THEIR USE AS ANTIBACTERIAL COMPOUNDS<br/>[FR] COMPOSÉS HÉTÉROCYCLIQUES, EN PARTICULIER DÉRIVÉS DE 2-OXO -4,4,5,5,6,6,7,7-OCTAHYDROBENZOXAZOLE, ET LEUR UTILISATION EN TANT QUE COMPOSÉS ANTIBACTÉRIENS
申请人:REDX PHARMA PLC
公开号:WO2017137744A1
公开(公告)日:2017-08-17
This invention relates to antibacterial drug compounds containing a bicyclic core, typically a bicycle in which one of the rings is an oxazolidinone. It also relates to pharmaceutical formulations of antibacterial drug compounds. It also relates to uses of the compounds in treating bacterial infections and in methods of treating bacterial infections.
This invention relates to antibacterial drug compounds containing a bicyclic core, typically a bicycle in which one of the rings is an oxazolidinone. It also relates to pharmaceutical formulations of antibacterial drug compounds. It also relates to uses of the derivatives in treating bacterial infections and in methods of treating bacterial infections.
Iridium complexes of novel NCP pincer ligands containing pyridine and phosphinite arms have been synthesized. One Ir complex shows good catalytic activity for alkanedehydrogenation, and all complexes are highlyactive for olefin isomerization. A combination of the Ir complex and a (PNN)Fe pincer complex catalyzes the formation of linear alkylboronates selectively from internal olefins via sequential