Results 21 to 30 of about 1,812 (181)

Drastic Impact of Donor Substituents on Xanthenes in the PDT of Glioblastoma [PDF]

JACS Au
O. Karaman, E. Yesilcimen, M. Forough, Z. Elmazoglu, G. Gunbas   +4 more
doaj   +2 more sources

Ozonation of Xanthene [PDF]

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, Yoshihiko Miyamoto, Katsuyoshi Shibata, Yoshimi Takase   +3 more
openaire   +1 more source

Divergent synthesis of fused Benzo-xanthene and oxazine derivatives via Cu-catalyst

Journal of Saudi Chemical Society, 2022
Cu-Cu2O combination showed synergic effects in catalyzing intramolecular Ullmann coupling reaction for halo-Betti bases to afford fused benzo-xanthenes from both electron-rich and electron-deficient aromatic systems in good yield under mild reaction ...
Meshari A Alsharif, Naseem Ahmed, Mohammed Issa Alahmdi, Sayeed Mukhtar, Humaira Parveen, Rami J. Obaid, Abdulraheem S.A. Almalki   +6 more
doaj   +1 more source

The Synthesis of Substituted Tetrahydro‐1H‐xanthen‐1‐ones and Xanthenes.

ChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
Mahesh L. Patil, Hanumant B. Borate
openaire   +1 more source

Synthesis and One‐Electron Reduction of Donor‐Acceptor‐Stabilized SiII–EII–SiII Trimetallylenes (E = Ge, Sn, Pb)

Angewandte Chemie, EarlyView.
The first isolable trimetallylenes (SiII)2EII (E = Ge, Sn, Pb) with pπ‐type silanylidenyl donors have been synthesized, having donor–acceptor electronic structures that give rise to near‐infrared absorption and enable access to bis(silanylidenyl)‐supported GeI and SnI radical anions upon one‐electron reduction with elemental potassium. ABSTRACT Herein,
Chaopeng Hu, Shenglai Yao, Christian Lorent, Matthias Driess   +3 more
wiley   +2 more sources

A Facile and Catalyst-free Synthesis of Hexahydroacridine-1,8(2H,5H )-dione and Octahydroacridin-10(1H )-yl)thiourea Derivatives: Inter- and Intramolecular Aza-Michael addition

Heterocyclic Communications, 2020
An easy and convenient technique for the one-pot synthesis of novel compounds of hexahydroacridine-1,8(2H,5H)-dione and octahydroacridin-10(1H)-yl) thiourea derivatives has been developed by the reaction of the octahydro-1H-xanthenes with hydroxylamine ...
Pesyan Nader Noroozi, Akhteh Narmin, Batmani Hana, Anıl Barış, Şahin Ertan   +4 more
doaj   +1 more source

The Antifungal Activity of Naphthoquinones: An Integrative Review

Anais da Academia Brasileira de Ciências
Naphthoquinones are the most commonly occurring type of quinones in nature. They are a diverse family of secondary metabolites that occur naturally in plants, lichens and various microorganisms.
DÉBORA O. FUTURO, PATRICIA G. FERREIRA, CAROLINE D. NICOLETTI, LUANA P. BORBA-SANTOS, FERNANDO C. DA SILVA, SONIA ROZENTAL, VITOR FRANCISCO FERREIRA   +6 more
doaj   +1 more source

γ-Fe2O3@HAP-Fe2+ NPs: An Efficient and Eco-Friendly Catalyst for the Synthesis of Xanthene Derivatives in Water [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2018
Efficient and environmentally friendly syntheses of xanthenes derivatives by using γ-Fe2O3@HAP-Fe2+ NPs as a catalyst has been carried out. The catalyst can be readily isolated by using an external magnet and no obvious loss of activity was observed when
Rahim Hosseinzdeh Khanamiri, Esmail Vessally, Gholam Hossein Shahverdizadeh, Mirzaagha Babazadeh, Ladan Edjlali   +4 more
doaj  

Xanthene Dyes

, 2014
Citation: 'xanthene dyes' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.X06695 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms. Requests for commercial
Paul Wright, Updated by Staff
openaire   +2 more sources

An efficient multi-component synthesis of 14-aryl-14H-dibenzo[a,j]xanthene derivatives by AgI nanoparticles

Journal of Saudi Chemical Society, 2015
Recoverable heterogeneous AgI nanoparticles efficiently catalyzed the one-pot synthesis of 14-aryl-14H-dibenzo[a,j]xanthenes via multi-component reaction of aldehydes and 2-naphthol under solvent-free conditions.
Javad Safaei-Ghomi, Mohammad Ali Ghasemzadeh   +1 more
doaj   +1 more source