Reference of Methyl 5-bromopicolinateIn 2011 ,《Fluorogenic N,O-chelates built on a C2-symmetric aryleneethynylene platform: Spectroscopic and structural consequences of conformational preorganization and ligand denticity》 appeared in Journal of Organometallic Chemistry. The author of the article were Park, Byung Gyu; Pink, Maren; Lee, Dongwhan. The article conveys some information:
Using π-extended aryleneethynylene as a rigid structural skeleton, a C2-sym. bis(picolinate) ligand I was prepared Binding of Zn(II) or Cd(II) ion to this formally tetradentate N2O2-chelate resulted in significant red shifts and enhancement in emission. The metal-ligand interaction responsible for such structural change was studied by isolation and characterization of a tetrazinc(II) complex, in which the picolinate group functions not only as terminal bidentate but also as bridging with its μ-1,3 carboxylate unit. In the experiment, the researchers used Methyl 5-bromopicolinate(cas: 29682-15-3Reference of Methyl 5-bromopicolinate)
Methyl 5-bromopicolinate(cas: 29682-15-3) belongs to pyridine. The basicity and metallophilic high donor number of these π-deficient systems has long favored them as ligands in metal catalysis. The last decade saw pyridine assume a stronger role as functional group for directed C–H oxidation/activation.Reference of Methyl 5-bromopicolinate