37797-12-9Relevant articles and documents
Facile synthesis of octahydroxanthenes by one-pot reaction under solvent-free condition
Devi, L. Ronibala,Chanu, L. Vartima,Chanu, I. Harimala,Singh, O. Mukherjee
, p. 1528 - 1530 (2016)
Synthesis of 1,8-dioxo-octahydroxanthenes by cyclocondensation of 5,5-dimethyl-1,3-cyclohexanedione and aromatic aldehydes using catalytic amount of CuCl2·2H2O under solvent free condition is reported. Structures of ten compounds are
In vitro tripanocidal effect of 1,8-dioxooctahydroxanthenes (xanthenodiones) and tetraketones and improvement of cardiac parameters in vivo
Carneiro, Ana Claudia Alvarenga,Costa, Guilherme de Paula,Horta, Aline Luciano,Mendon?a, Andréa Aparecida Santos,Menezes, Ana Paula de Jesus,Novaes, R?mulo Dias,Pereira, Wagner Luiz,Silva, Milene Lopes da,Souza, Debora Maria Soares de,Talvani, André,Teixeira, Róbson Ricardo
, p. 466 - 476 (2020)
Objective: Trypanosoma cruzi infection affects millions of people worldwide, and the drugs available for its treatment have limited efficacy. 1,8-Dioxooctahydroxanthenes and tetraketones are compounds with important biological applications. The aim of thi
A Rapid Ultrasound Synthesis of Xanthenediones Catalyzed by Boric acid in Ethanol-Water Medium: Single Crystal, DFT and Hirshfeld Surface Analysis of Two Representative Compounds
Begum, Noor Shahina,Panday, Anoop Kumar,Shashi, R.
, (2021/01/07)
A highly versatile and efficient ultrasound promoted synthesis of xanthenedione derivatives is achieved through condensation of dimedone with various aromatic aldehydes using boric acid as catalyst in ethanol-water medium. The advantages of this method be
Basic ionic liquid anchored on UiO-66-NH2 metal–organic framework: a stable and efficient heterogeneous catalyst for synthesis of xanthenes
Askari, Saeed,Khodaei, Mohammad Mehdi,Jafarzadeh, Mohammad
, p. 2881 - 2899 (2021/04/09)
In this study, the Zr-based metal–organic framework, UiO-66-NH2, was modified with ionic liquid (dibutylimidazolium bromide) to generate a platform for supporting an organocatalyst of guanidine. After an anion exchange, the prepared hybrid syst
Sustainable synthesis of 1,8-dioxooctahydroxanthenes in deep eutectic solvents (DESs)
Shaibuna,Abbas, Anshad,Kariyottu Kuniyil, Muhammed Jeneesh,Sreekumar
, p. 8335 - 8344 (2021/05/21)
Deep eutectic solvents are obtained by the fusion of two or more compounds: hydrogen bond donors (HBDs) and hydrogen bond acceptors (HBAs). They are formed by mixing the constituents with moderate heating (via hydrogen bond interactions). In this manuscript, the dual activities (as catalysts and reaction media) of six deep eutectic solvents were compared for the synthesis of 1,8-dioxooctahydroxanthenes at room temperature. Here DES 2, a combination of ZrOCl2·8H2O with ethylene glycol at a 1 : 2 ratio, was found to be the supreme catalyst among the six DESs and was reused for five batches. The photophysical properties of the xanthene derivatives were examined by UV-vis and fluorescence spectroscopy in THF. The synthesised molecules showed absorption maxima around 285-295 nm and emission maxima around 403-404 nm. The ground state dipole moments of all the molecules were calculated by the Debye-Guggenheim method using toluene as the non-polar solvent. All the synthesised molecules showed significant dipole moment values and are in good agreement with theoretical values.
Sulfonamide-Functionalized Porous Organic Framework as an Efficient Heterogeneous Acid Catalyst for One-Pot Preparation of 1,8-Dioxooctahydroxanthenes
Farsi, R.,Mohammadi, M. K.,Saghanezhad, S. J.
, p. 2002 - 2009 (2022/01/24)
Abstract: Herein, we report the sulfonamide-functionalized covalent organic framework (COF-SO3H), prepared by condensation of melamine and terephthalaldehyde and subsequent sulfonation, as an acidic porous catalyst for the one-pot preparation o
Incorporation of Keggin-based H3PW7Mo5O40into bentonite: synthesis, characterization and catalytic applications
Aher, Dipak S.,Khillare, Kiran R.,Shankarwar, Sunil G.
, p. 11244 - 11254 (2021/03/31)
The Keggin-based molybdo-substituted tungstophosphoric acid, H3[PW7Mo5O40]·12H2O, were synthesized and incorporated with a bentonite clay by using a wetness impregnation method. The catalysts were cha
ChCl: Gly (DESs) promote environmentally benign synthesis of xanthene derivatives and their antitubercular activity
Al-Dhfyan, Abdullah,Al-Tuwajiria, Hanaa M.,Ansari, Siddique Akber,Bhat, Mashooq A.,Naglah, Ahmed M.
, (2021/07/06)
A ChCl: Gly (DESs) promoted environmentally benign method was developed for the first time using the reaction of aryl aldehydes and dimedone to give excellent yields of xanthene analogues. The major application of this present protocol is the use of green
Heterogeneous SO3H@Fe3O4 magnetic nanocatalyst as an efficient and reusable medium for the synthesis of 3,3′-(arylmethylene)-bis-(4-hydroxycoumarin), bis-(indolyl)-methane, and 1,8-dioxo-octahydroxanthene derivatives
Wu, Xiaobo,Peng, Wan-Xi
, p. 2129 - 2148 (2020/06/24)
This work aimed to synthesize a new heterogeneous catalyst (SO3H@Fe3O4 magnetic nanoparticles) and the study of its catalytic behavior in synthesizing 3,3′-(arylmethylene)-bis-(4-hydroxycoumarin), bis-(indolyl)-methane, an
Synthesis of 1,8-dioxooctahydroxanthene derivatives using ionic liquids, quantum chemical studies and anticancer activity
Sangwan, Reetu,Saini, Monika,Verma, Ruchi,Kumar, Saurabh,Banerjee, Monisha,Jain, Sudha
, (2020/02/18)
An eco friendly and efficient method for the synthesis of 1,8-dioxooctahydroxanthene derivatives in excellent yield (~90%) using ionic liquids 1-butyl-3-methylimidazoliumtetrafluoroborate (BMIF), 1-butyl-3-methylimidazoliumbromide (BMIB) and 1-butyl-3-met