Topic
Xanthene
About: Xanthene is a research topic. Over the lifetime, 2132 publications have been published within this topic receiving 34803 citations. The topic is also known as: Xanthene & dibenzo[a,e]pyran.
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TL;DR: In this article, a novel polymers containing xanthene groups with high dye concentrations were prepared, and their third order nonlinear optical properties were studied by electroabsorption spectroscopy technique.
2 citations
TL;DR: An efficient and practical method for the synthesis of a variety of aminobenzopyranoxanthenes (ABPX) with different nitrogen-containing fused rings was developed to facilitate access to previously inaccessible asymmetric ABPXs.
Abstract: An efficient and practical method for the synthesis of a variety of aminobenzopyranoxanthenes (ABPXs) with different nitrogen-containing fused rings was developed. On the basis of the mechanistic studies of the formation of the xanthene framework, the presented methodology was developed to facilitate access to previously inaccessible asymmetric ABPXs.
2 citations
Patent•
10 Nov 1987
TL;DR: In this paper, an aminophenol is reacted with an aldehyde expressed by the formula R.CHO in the presence of a platinum or/and catalyst supported on active carbon carrier in a solvent, e.g. aliphatic alcohol, under 2-30kg/cm G pressure of hydrogen at 0-80 deg.
Abstract: PURPOSE:To obtain a compound useful as a synthetic intermediate for heat- and pressure-sensitive paper, xanthene dyes, etc., in high selectivity without problems in material corrosion, by reacting an aminophenol with an aldehyde under specific condition. CONSTITUTION:An aminophenol is reacted with an aldehyde expressed by the formula R.CHO (R is 1-5C alkyl) in the presence of a platinum or/and catalyst supported on active carbon carrier in a solvent, e.g. aliphatic alcohol, under 2-30kg/cm G pressure of hydrogen at 0-80 deg.C to afford the aimed substance. In the process, the molar ratio of the aminophenol to the aldehyde is >=1.5-<4 and the aldehyde is continuously introduced into the reaction system at <=0.1mol/ min introduction rate based on 1mol aminophenol to carry out the reaction.
2 citations
TL;DR: A series of hexahydro-1 H -xanthene-1,8(2 H )-dione derivatives were synthesized in this article for their anti-virulence properties against Candida albicans.
Abstract: A series of hexahydro-1 H -xanthene-1,8(2 H )-dione derivatives were synthesized. All the derivatives were screened for their anti-virulence properties against Candida albicans . In silico studies were performed to corroborate the experimentally observed facts.
2 citations
TL;DR: Two new ZnII complexes, [Zn2(L)3(bpy)2](ClO4)(H2O)0.5}∞ (2), were synthesized and characterized by x-ray single-crystal diffraction analysis (L = xanthene-9).
Abstract: Two new ZnII complexes, [Zn2(L)3(bpy)2](ClO4)(H2O)0.5 (1) and {[Zn2(L)3(bpp)2](ClO4)(CH3OH)0.5}∞ (2), were synthesized and characterized by x-ray single-crystal diffraction analysis (L = xanthene-9...
2 citations