Add time:07/11/2019         Source:sciencedirect.com

A boron difluoride complex of 3-acetyl-5,7-di(pyrrolidin-1-yl)-4-hydroxycoumarin was synthesized and converted into polymethine dyes which included an anionic, symmetric cyanine and several merocyanine compounds. The spectral luminescent behaviour of the dyes was studied. As the electron-withdrawing ability of the 2,2-difluoro-1,3,2-dioxaborine ring was significantly reduced by the two pyrrolidino groups on the latter nucleus, the newly synthesized dyes exhibited changes in spectral parameters and much increased resistance to hydrolysis.

We also recommend Trading Suppliers and Manufacturers of 4-(2-ANILINOVINYL)-1-ETHYLQUINOLINIUM IODIDE (cas 19487-71-9). Pls Click Website Link as below: cas 19487-71-9 suppliers