In 2012,Reis, Lindomar A.; Ligiero, Carolina B. P.; Andrade, Acacio A.; Taylor, Jason G.; Miranda, Paulo C. M. L. published 《Preparation of polyaminopyridines using a CuI/-proline-catalyzed C-N polycoupling reaction》.Materials published the findings.Product Details of 13534-97-9 The information in the text is summarized as follows:
Polyaminopyridines (PAPy) were chem. prepared from amino-bromopyridines by a CuI/-proline-catalyzed C-N polycondensation reaction. The formation of the polymer was confirmed by GPC, x-ray diffraction, XRF, FTIR, UV-vis (λmax = 400 nm), 1H and 13C NMR. The number-average mol. weights (Mn) were estimated by end-group anal. using x-ray fluorescence (up to 6000 Da). TGA anal. of PAPy with higher Mn showed greater thermal stability up to 170 °C. Viscosity measurements of polymer in formic acid at 30 °C indicated a polyelectrolyte nature of PAPy solutions Furthermore, the amorphicity of the material was observed by x-ray diffraction anal. In addition to this study using 6-Bromopyridin-3-amine, there are many other studies that have used 6-Bromopyridin-3-amine(cas: 13534-97-9Product Details of 13534-97-9) was used in this study.
6-Bromopyridin-3-amine(cas: 13534-97-9) belongs to anime. Left-handed and right-handed forms (mirror-image configurations, known as optical isomers or enantiomers) are possible when all the substituents on the central nitrogen atom are different (i.e., the nitrogen is chiral). With amines, there is extremely rapid inversion in which the two configurations are interconverted.Product Details of 13534-97-9