11H-Pyrido[2,1-b]quinazolin-11-one - A reversible Turn-on/off Fluorescent Probe for Solution and Gas-phase Detection of Acids or Basic Amines
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DOI: 10.1016/j.dyepig.2021.109536
Abstract: Abstract The present study details a metal- and solvent-free synthesis of 11H-pyrido[2,1-b]quinazolin-11-one (1) and its photophysical properties as an acid or base-sensitive sensor. The absorption spectra in organic solvents revealed a small blue shift on… read more here.
Keywords: basic amines; quinazolin one; pyrido quinazolin; acids basic ... See more keywords
Synthesis of Benzo-Fused 11H-Pyrido[2,1-b]quinazolin-11-ones by a Buchwald–Hartwig Coupling/Pyridine Dearomatization Sequence in Eucalyptol
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DOI: 10.1055/s-0040-1707158
Abstract: The synthesis of a new library of polyheterocyclic 11H-pyrido[2,1-b]quinazolin-11-one derivatives was investigated. Satisfactory conditions were obtained via sequential C–N Buchwald–Hartwig coupling and pyridine dearomatization. In this work, traditional solvents were replaced by the bio-sourced eucalyptol,… read more here.
Keywords: buchwald hartwig; hartwig coupling; pyrido quinazolin; 11h pyrido ... See more keywords