Related Products of 591-54-8. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 4-Aminopyrimidine, is researched, Molecular C4H5N3, CAS is 591-54-8, about Boramidine: A Versatile Structural Motif for the Design of Fluorescent Heterocycles. Author is Lebedev, Yury; Apte, Chirag; Cheng, Susan; Lavigne, Cyrille; Lough, Alan; Aspuru-Guzik, Alan; Seferos, Dwight S.; Yudin, Andrei K..
Sodium cyanoborohydride-derived N-alkylnitriliumboranes were found to be versatile precursors for the synthesis of novel boron-containing heterocycles. The reaction between N-alkylnitriliumboranes and 2-aminopyridines, -imidazoles, -oxazoles, or -isoxazoles leads to incorporation of the [B-C] motif into a five-membered boramidine which exist as a mixture of Z and E isomers. The resulting heterocycles are blue-fluorescent in both the solid state and in solution with ca. 2700 – 8400 cm-1 Stokes shifts and quantum yields in the 65 – 74% range in water and in the 42 – 84% range in organic solvents. The combination of photophys. properties, structural tunability, stability, and solubility in various media are expected to find application in a range of disciplines.
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