Polypyridines

Polypyridines are multidentate ligands with characteristic properties. The Polypyridines and complexes of Polypyridines are stable to heat, light and electricity. Among many regiomeric Polypyridines, 2,2’-bipyridines derivatives and 2,2’; 6,2”-terpyridine derivatives have become an ever-expanding synthetic and structural frontier because 2,2’-bipyridine metal complexes, 2,2’; 6,2’-terpyridine metal complexes and mixed bipyridine-terpyridine metal complexes have special redox properties suitable for photochemical applications. Polypyridines are one of the ideal candidates for dye-sensitized solar cells, converting solar energy to electricity. Polypyridines have also been utilized for catalytic process and in asymmetric catalysis. Considering the versatility of Polypyridines, Sapala has developed methods for multigram scale synthesis of bipyridines and terpyridines. Sapala also continues its efforts to make new derivatives of Polypyridines and also working on purification of polypyridine metal complexes for establishing a reliable and economic process of purification. The high purity of polypyridine metal complexes is essential for efficient conversion of solar energy to electricitiy.

  • 4,4’-Dimethyl-2,2’-bipyridine
  • 2,2’-bipyridine-4,4’-dicarboxylic acid
  • 4,4’-di-Bromomethyl-2,2’-bipyridine
  • 4,4’-di-hydroxymethyl-2,2’-bipyridine
  • 2,2’;6, 2”-terpyridine
  • 4-bromo-terpyridine
  • 4-hydroxy-terpyridine
  • 4-chloro-terpyridine
  • Terpyridine-4-boronic acid pinacol ester

The halogen and boronate substituted polypyridine could be used as precursor for Suzuki coupling to make extended conjugation. Other Polypyridines and their metal complexes can be made in pure forms upon request.

The following are the representative examples of Polypyridines.

Product No. Structure IUPAC Name CAS No. Specification & MSDS
SBP-0001 pyridines dihydropyridines 4,4'-Dimethyl-[2,2']bipyridine 1134-35-6 pyridines amlodipine
SBP-0002 metabolism of pyridines 4,4'-Diethyl-[2,2']bipyridine 3052-28-6 biosynthesis of pyridines
SBP-0003 pharmacokinetics of pyridines 4,4'-Dinonyl [2,2']bipyridine 142646-58-0 catabolism of pyridines
SBP-0004 microbial metabolism of pyridine 4,4'-Dicyano-2,2'-bipyridine 67491-43-4 microbial metabolism of trimethylamine
SBP-0005 microbial metabolism of ethylmethylamine 2,2'-Bipyridine-4,4'-dicarboxylic acid 6813-38-3 microbial metabolism of dimethylamine
SBP-0006 trimethylamine acid or alkaline Dimethyl 2,2'-bipyridine-4,4'-dicarboxylate 71071-46-0 trimethylamine or lewis acid base
SBP-0007 triethanolamine chemical or base 2,2'-Bipyridine-4,4'-dicarboxamide -------- methylparaben chemical or base
SBP-0008 2,2'-Bipyridine-4,4'-diyldimethanol 109073-77-0 ethylparaben chemical or base
SBP-0009 ethylparaben chemical or alkaline 4,4'-Bis(bromomethyl)-2,2'-bipyridine 134457-14-0 magnesium stearate acid or alkaline
SBP-0010 potassium stearate acid or alkaline Tetraethyl 2,2'-bipyridine-4,4'-diylbis(methylene)diphosphonate 174397-53-6 chloride stearate acid or alkaline
SBP-0011 chloride magnesium stearate or alkaline (E/Z)-4,4'-Distyryl-2,2'-bipyridine -------- chloride silicon dioxide or alkaline
STP-0001 Terpyridine is a polypyridine compound [2,2';6',2'']Terpyridine 1148-79-4 regiomeric terpyridines
STP-0002 pyridine molecules [2,2';6',2'']Terpyridin-4'-ol 101003-65-0 unsymmetrical derivatives of terpyridines
STP-0003 asymmetric catalysis 4'-Chloro-[2,2';6',2'']terpyridine 128143-89-5 bipyridine derivatives for dye sensitized solar cell
STP-0004 tridentate ligands 4'-Bromo-[2,2';6',2'']terpyridine 149817-62-9 polypyridine metal complexes
STP-0005 bipyridine-terpyridine metal complexes 4'-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-[2,2';6',2'']terpyridine -------- synthesis of unsymmetrical derivatives of bipyridines
STP-0006 analytical services which include COSY, NOE, and other 2D experiments-HMQC, HSQC and HETCORE 4'-Thiomethyl-[2,2';6',2'']terpyridine -------- analytical services
STP-0007 contact research organization - cro 4,4',4''-Triethyl-[2,2';6',2'']terpyridine -------- Organic Synthesis
STP-0008 Full Time Equivalent (FTE) as well as Fee For Service (FFS) models Trimethyl 2,2',2"-terpyridine-4,4',4''-tricarboxylate 330680-46-1 custom synthesis of Organic Compounds
STP-0009 azetidine hydrochlorides to aid SAR studies in medicinal chemistry 4,4',4''-Tris(hydroxymethyl)-2,2':6',2''-terpyridine -------- heteroaryl Pinacol boronates such as pyrimidyl, thiazolyl, isothiazolyl
STP-0010 thiadiazoles with one aromatic ring 4,4',4''-Tris(bromomethyl)-2,2':6',2''-terpyridine -------- Cyclohexanone derivatives
STP-0011 Phosphoramidites of nucleoside Hexaethyl 2,2',2''-terpyridine-4,4',4''-triyltris(methylene) triphosphonate -------- Fluoro substituted nucleoside analogs