Synthesis, spectral study and crystal structure of a fluorescein derivative, p-methoxycarbonylphenyl fluorone
Protolytic equilibria of p-methoxycarbonylphenyl fluorone (PMCPF) in aqueous solutions were studied by spectrophotometry, and the species of PMCPF were determined. We describe for the first time the X-ray structure of the proton acceptor form of PMCPF.
Reliable synthesis of 9-aryl-substituted 2,6,7-trihydroxyxanthen-3-ones
2,6,7-Trihydroxyxanthen-3-ones are reliably prepared by a one-pot protocol using alkali peroxosulfates in the key step. NMR spectra in deuterated sodium hydroxide confirm the anticipated structures and allow the determination of the dye contents by an internal standard. Georg Thieme Verlag Stuttgart.
Schrick, Petra,Geick, Klaus,Waldvogel, Siegfried R.
experimental part
p. 2211 - 2216
(2009/04/06)
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