66596-11-0Relevant academic research and scientific papers
Application of highly sulfonated single-walled carbon nanotubes: An efficient heterogeneous catalyst for the one-pot synthesis of 14-aryl-14H-dibenzo[a,j]xanthenes under solvent-free conditions
Fareghi-Alamdari, Reza,Golestanzadeh, Mohsen,Agend, Farima,Zekri, Negar
, p. 878 - 887 (2013)
Highly sulfonated single-walled carbon nanotube-catalyzed synthesis of 14-aryl-14H- dibenzo[a,j]xanthenes in excellent yields and very short reaction times. Sulfonated single- walled carbon nanotubes are prepared using a chemical and simple process and it
A rapid and quantitative synthesis of xanthene derivatives using sulfonated graphitic carbon nitride under ball‐milling
Azizi, Najmedin,Ghaffarzadeh, Mohammad,Qareaghaj, Omid Hosseinchi
, (2021/07/02)
A truly green, solventless, and fast protocol for the quantitative preparation of biologically active xanthene derivatives with 10 mol% sulfonated graphitic carbon nitride (Sg─CN) as a heterogeneous acidic catalyst was developed. Excellent yields, low cost, solvent‐free conditions, high catalytic activity, reusability of the catalyst, simple workup, and heterogeneous carbon‐based catalyst make the present method particularly attractive from a green chemistry perspective.
Solvent-free synthesis of 14-aryl-14H-dibenzo[a-j]xanthenes using Fe3O4@Al2O3@SiO2@Fe2O3 as a green catalyst
Darya, Naghmeh,Tajik, Hassan
supporting information, p. 3546 - 3564 (2021/11/04)
We report, a novel, green, nano-sized particles as a sandwich nano-capsule multilayer catalyst (SNC@MC) [Fe3O4@Al2O3@SiO2@Fe2O3] for the efficacious one-pot synthesis of 14-aryl-
Nano-ZnO Impregnated on Starch—A Highly Efficient Heterogeneous Bio-Based Catalyst for One-Pot Synthesis of Pyranopyrimidinone and Xanthene Derivatives as Potential Antibacterial Agents
Amininia,Pourshamsian,Sadeghi
, p. 1279 - 1288 (2020/10/02)
Abstract: A new method has been proposed for the synthesis of pyranopyrimidinone andxanthene derivatives using zinc oxide–starch nanocomposite as catalyst undermicrowave irradiation. The ZnO–starch nanocomposite was characterized by X-raydiffraction and s
Novel ionic liquid [Et3N-SO3H][MeSo3]: Synthesis, characterization and catalytic performance for the synthesis of 14-aryl-14H-dibenzo[a,j]xanthenes
Sadeghi-Takallo, Masoud,Zare, Abdolkarim
, p. 69 - 76 (2019/03/21)
The main aim of this work is introducing a novel protic acidic ionic-liquid catalyst for organic synthesis. Thus, N,N-diethyl-N-sulfoethanaminium methanesulfonate ([Et3N-SO3H][MeSO3]) was synthesized by the reaction of triethylamine with chlorosulfonic ac
High acidity cellulose sulfuric acid from sulfur trioxide: A highly efficient catalyst for the one step synthesis of xanthene and dihydroquinazolinone derivatives
Yue, Xiaofei,Wu, Zhiqiang,Wang, Gang,Liang, Yanping,Sun, Yanyan,Song, Manrong,Zhan, Haijuan,Bi, Shuxian,Liu, Wanyi
, p. 28718 - 28723 (2019/09/30)
A cellulose sulfonate catalyst (HS-cellulose sulfonate) with high stability, excellent catalytic activity and high acidity value (about 1.55 mmol g-1) was successfully prepared by SO3 gas phase sulfonation. The basic morphology and nanostructure of the catalyst were determined by HRTEM, XRD, IR, TG, etc. In addition, the catalyst was applied to the catalytic reaction of a dihydroquinazolinone derivative and a xanthene compound, and very valuable results were obtained. The development and preparation of cellulose sulfonate catalysts provide a good approach for the development and application of cellulose, and also an important application of green organic catalytic synthesis methodology.
Introducing an effective nanocatalytic for the one-pot synthesis and investigation of biological properties of pyranopyrimidinone and xanthene derivatives
Amininia, A.,Pourshamsian, K.,Sadeghi, B.
, p. 4633 - 4638 (2020/04/30)
In this study, an effective method for the synthesis of pyranopyrimidinone and xanthene derivatives is introduced. In this method, zinc oxide-chitosan nanocomposite has been used as a catalyst and all reactions were performed under irradiated in a microwa
Direct synthesis of xanthenes from benzyl alcohols using choline peroxydisulfate ionic liquid as a reagent under otherwise solvent-free conditions
Soleimani, Omid,Hosseinian, Asghar
, p. 337 - 340 (2018/08/03)
14-Aryl-14H-dibenzo[a,j]xanthenes and 1,8-dioxo-octahydroxanthenes were synthesised directly from benzyl alcohols by a tandem catalytic process using choline peroxydisulfate (ChPS). The synthesis proceeds through two steps: an oxidation of the benzyl alco
