294198-02-0Relevant articles and documents
Fe3O4 nano-particles supported on cellulose as an efficient catalyst for the synthesis of pyrimido[4,5-b]quinolines in water
Edjlali, Laden,Khanamiri, Rahim Hosseinzdeh,Abolhasani, Jafar
, p. 1339 - 1342 (2015)
Fe3O4 nano-particles supported on cellulose were provided as a catalyst via in situ preparation of Fe3O4 nano-particles and their deposition on cellulose. This catalyst, after characterization with TEM and FAAS
Agar-entrapped sulfonated DABCO: Agelly acidic catalyst for the acceleration of one-pot synthesis of 1,2,4-triazoloquinazolinone and some pyrimidine derivatives
Langarudi, Mohaddeseh Safarpoor Nikoo,Moghaddampour, Issa Mousazadeh,Shirini, Farhad
, (2020/10/07)
In this project, a recently synthesized DABCO-based catalyst is entrapped in agar to reduce its moisture sensitivity leading to enhancement of its stability and catalytic activity. After preparation and identification this new reagent is used as an efficient and environmentally safe catalyst for the preparation of 1, 2, 4-triazoloquinazolinone and some pyrimidine derivatives. This method is accompanied with some superiorities such as, simple operation, mild and green conditions, use of low cost and non-hazardous natural material, short reaction times, easy preparation methods and simple work-up procedures. The prepared catalyst can be re-used for several times in all of the studied reactions without any appreciable loss in its activity.
An eco-friendly and magnetized biopolymer cellulose-based heterogeneous acid catalyst for facile synthesis of functionalized pyrimido[4,5-b]quinolines and indeno fused pyrido[2,3-d]pyrimidines in water
Osanlou, Fatemeh,Nemati, Firouzeh,Sabaqian, Samaneh
, p. 2159 - 2174 (2017/03/22)
Abstract: A cellulose-based magnetic nano-composite supported SO3H group was synthesized and characterized using Fourier transform infrared spectroscopy, energy-dispersive X-ray spectroscopy, thermogravimetric analysis, X-ray diffraction, and scanning electron microscopy. Thereafter, its capability to promote the one-pot, three-component synthesis of pyrimido [4,5-b] quinolone and pyrido [2,3-d] pyrimidine derivatives was evaluated. The obtained results are indicative of excellent yields and short reaction times. The biopolymer based catalyst is readily recovered and reused several times without a decrease in yield. Graphical Abstract: [Figure not available: see fulltext.]
Preparation of a new DABCO-based ionic liquid and investigation on its application in the synthesis of benzimidazoquinazolinone and pyrimido[4,5-b]-quinoline derivatives
Shirini, Farhad,Langarudi, Mohaddeseh Safarpoor Nikoo,Daneshvar, Nader,Mashhadinezhad, Maryam,Nabinia, Nazanin
, p. 302 - 312 (2017/08/21)
In this article, we report the preparation of a new ionic liquid from the reaction of DABCO and sulfuric acid and its characterization using FT-IR, Mass and NMR spectroscopy. This ionic liquid is air- and water-stable and affordable. Afterward this reagen
A New MCR strategy generating a collection of skeletally diverse simple molecules combinatorially
Nandi, Sibaji,Gupta, Ajay,Pal, Amarta Kumar
, p. 291 - 299 (2017/07/15)
Background: 1,4 Dihydropyridines (1,4 DHPs), chromeno[4,3-b] quinolines and pyrimido [4,5-b]quinolines are biologically and pharmaceutically important heterocycles. They are also present in many natural products. Many methods have been applied for their s
Multicomponent synthesis of some benzo, pyrimido and pyrazolo fused heterocycles using [Nmp]H2Po4 as an efficient reaction medium
Kumari, Sudesh,Khurana
, p. 395 - 404 (2019/01/21)
An efficient synthesis of benzoxanthene, pyrimidoquinoline, pyrimidochromene and pyrazolopyridine fused heterocycles by condensation of aromatic aldehydes, 2- hydroxy-1,4-naphthoquinone/ 6-amino-1,3-dimethyl uracil/ 1,3-dimethyl barbituric acid/ 5-amino-3-methyl-1-phenylpyrazole and 5,5-dimethylcyclohexane-1,3-dione/5- methylcyclohexane-1,3-dione/ cyclohexane-1,3-dione/cyclopentane-1,3-dione has been developed using [NMP]H2PO4 as a highly efficient reaction medium and catalyst. All the reactions proceeded smoothly and gave corresponding products in high yield after a simple workup.
1,3-Disulfonic acid imidazolium hydrogen sulfate: A reusable and efficient ionic liquid for the one-pot multi-component synthesis of pyrimido[4,5-b]quinoline derivatives
Mohammadi, Kamal,Shirini, Farhad,Yahyazadeh, Asieh
, p. 23586 - 23590 (2015/04/14)
A green, simple and convenient method for the synthesis of pyrimido[4,5-b]quinoline derivatives has been developed through a three-component one-pot condensation of 6-amino-1,3-dimethyluracil, aldehydes, and cyclic 1,3-diketones in the presence of 1,3-dis
A green multicomponent synthesis of bioactive pyrimido[4,5-b]quinoline derivatives as antibacterial agents in water catalyzed by RuCl 3·xH2O
Tabatabaeian, Khalil,Shojaei, Abdollah Fallah,Shirini, Farhad,Hejazi, Seyyedeh Zoha,Rassa, Mehdi
, p. 308 - 312 (2014/02/14)
An efficient, convenient and environmentally benign one-pot multicomponent reaction for the preparation of pyrimido[4,5-b]quinoline derivatives as biologically, pharmacologically and antibacterially active products has been developed using RuCl3/sub
Nano-Fe3O4 encapsulated-silica particles bearing sulfonic acid groups as a magnetically separable catalyst for green and efficient synthesis of functionalized pyrimido[4,5-b]quinolines and indeno fused pyrido[2,3-d]pyrimidines in water
Nemati, Firouzeh,Saeedirad, Raheleh
, p. 370 - 372 (2013/07/04)
The magnetic nanoparticles supported silica sulfuric acid was used as an efficient catalyst for the synthesis of pyrimido[4,5-b]quinolines and indeno fused pyrido[2,3-d]pyrimidines in water. The desired products were obtained in excellent yields. Fe3O4@SiO2-SO3H was readily recovered using an external magnet and could be reused several times without significant loss of reactivity.
An efficient one-pot three-component synthesis of functionalized pyrimido[4,5-b]quinolines and indeno fused pyrido[2,3-d]pyrimidines in water
Verma, Girijesh K.,Raghuvanshi, Keshav,Kumar, Ram,Singh, Maya Shankar
experimental part, p. 399 - 402 (2012/02/02)
A simple, efficient, and high yielding one-pot protocol for the synthesis of pyrimido[4,5-b]quinolines and indeno[2′,1′:5,6]pyrido[2,3-d] pyrimidines has been developed by three-component domino coupling of 6-amino-1,3-dimethyluracil, aldehydes, and cycli