Results 11 to 20 of about 12,440 (225)
New synthetic strategies for xanthene-dye-appended cyclodextrins [PDF]
Beilstein Journal of Organic Chemistry, 2016 Xanthene dyes can be appended to cyclodextrins via an ester or amide bridge in order to switch the fluorescence on or off. This is made possible through the formation of nonfluorescent lactones or lactams as the fluorophore can reversibly cyclize.
Milo Malanga +5 more
doaj +4 more sources
9-(4'-dimethylaminophenyl)-2,6,7-trihydroxy-xanthene-3-one is a potentially novel antiplatelet drug which antagonizes the effect of thromboxane A2 [PDF]
, 2018 Background: Currently, used oral antiplatelet drugs are both limited and associated with the risk of treatment failure/resistance. Research in this area is hence highly desired.
Applová, Lenka +8 more
core +1 more source
A new xantphos-type ligand and its gold(I) complexes: Synthesis, structure, luminescence [PDF]
, 2013 A novel xantphos analog diphosphine ligand, 9,9-dimethyl-4,5-bis(diphenylphosphinomethyl)-9H-xanthene (X(CP)2), with methylene groups inserted between the xanthene skeleton and the two diphenylphosphine units, has been synthesized. A two-coordinate and a
Baranyai, Péter +8 more
core +1 more source
Lanthanide(III) complexes of rhodamine-DO3A conjugates as agents for dual-modal imaging [PDF]
, 2013 Two novel dual-modal MRI/optical probes based on a rhodamine-DO3A conjugate have been prepared. The bis aqua-Gd(III) complex Gd.L1 and mono aqua-Gd(III) complex Gd.L2 behave as dual-modal imaging probes (r1 = 8.5 and 3.8 mM-1s-1 for Gd.L1 and Gd.L2 ...
Gallo, Juan +5 more
core +2 more sources
Acta Crystallographica Section E, 2009 The title compound, C36H36N4O4, was prepared as a spirolactam ring formation of the rhodamine dye for comparison with a ring-opened form. The xanthene ring system is approximately planar [r.m.s.
Zhi-Hong Xu +3 more
doaj +1 more source
Acta Crystallographica Section E, 2010 The title compound, C35H35ClN4O3, resulted from a spirolactam ring closure of rhodamine B dye. The xanthene ring system is approximately planar [r.m.s. deviation = 0.050 (9) Å for the xanthene ring].
Zhi-hong Xu +4 more
doaj +1 more source
Bulletin of the Chemical Society of Japan, 1984 Abstract The ozonation of xanthene was studied using an oxygen stream. Ozone attacks the methylene group of xanthene via a 1,3-dipolar insertion reaction to give the hydrotrioxide intermediate, followed by a loss of singlet oxygen to form xanthydrol.
Masaki Matsui +3 more
openaire +1 more source
Xanthene and Xanthone Derivatives as G-Quadruplex Stabilizing Ligands
Molecules, 2013 Following previous studies on anthraquinone and acridine-based G-quadruplex ligands, here we present a study of similar aromatic cores, with the specific aim of increasing G-quadruplex binding and selectivity with respect to duplex DNA.
Alessandro Altieri +7 more
doaj +1 more source
Methyl 9H-xanthene-9-carboxylate [PDF]
Acta Crystallographica Section E Structure Reports Online, 2008 The title compound, C(15)H(12)O(3), was obtained unintentionally as the by-product of an attempted recrystallization from methanol of propantheline bromide, an anti-muscarinic drug. The xanthone unit is folded, with a dihedral angle of 24.81 (9)° between the benzene rings.
Douglas R. MacFarlane +2 more
openaire +3 more sources
Shine bright or live long: substituent effects in [Cu(N^N)(P^P)]+-based light-emitting electrochemical cells where N^N is a 6-substituted 2,2'-bipyridine [PDF]
, 2016 We report [Cu(P^P)(N^N)][PF6] complexes with P^P = bis(2-(diphenylphosphino)phenyl)ether (POP) or 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene (xantphos) and N^N = 6-methyl-2,2′-bipyridine (Mebpy), 6-ethyl-2,2′-bipyridine (Etbpy), 6,6′-dimethyl-2,2 ...
Bolink, H. J. +10 more
core +1 more source