300375-34-2Relevant academic research and scientific papers
Multi-walled carbon nanotube supported Fe3O4NPs: An efficient and reusable catalyst for the one-pot synthesis of 4H-pyran derivatives
Fallah-Shojaei, Abdollah,Tabatabaeian, Khalil,Shirini, Farhad,Hejazi, Seyyedeh Zoha
, p. 9509 - 9516 (2014)
Multi-walled carbon nanotube supported Fe3O4 nanoparticles have been prepared and characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), vibrating sample magnetometry (VSM), and transmission and sca
Amine-functionalized hyper-crosslinked polyphenanthrene as a metal-free catalyst for the synthesis of 2-amino-tetrahydro-4H-chromene and pyran derivatives
Kalla, Reddi Mohan Naidu,Varyambath, Anuraj,Kim, Mi Ri,Kim, Il
, p. 9 - 18 (2017/03/24)
The hyper-crosslinked microporous polyphenanthrene spheres were fabricated simply by the polymerization of phenanthrene using bromomethyl methyl ether as a bridging agent in the absence of any templates. The organic spheres were subjected to amine-functionalizing on the periphery of them using unreacted bromomethyl groups. The amine-functionalized microporous polyphenthrene could be employed as a highly effective and stable solid basic catalyst for the syntheses of functionalized 2-amino-tetrahydro-4H-chromene and pyran derivatives. The significant features of these reactions are high product yields, environmental benignity, short reaction time, broad substrate scope, and non-requirement of toxic solvents. Furthermore, the catalyst can be reused up to four times without significant loss of activity.
Piperazine catalyzed one-pot, three-component synthesis of 4H-chromene and 3,4-dihydropyrano[c]chromene derivatives under solvent-free conditions
Mobinikhaledi, Akbar,Moghanian, Hassan,Zohari, Azam
, p. 35 - 39 (2016/07/15)
(Formula presented) A convenient and efficient method for one-pot synthesis of 4H-chromene and 3,4-dihydropyrano[c]chromene derivatives by a multi-component condensation reaction of aromatic aldehydes, malononitrile and dimedone or 4-hydroxycoumarin in th
Nanorod vanadatesulfuric acid as a novel, recyclable and heterogeneous catalyst for the one-pot synthesis of tetrahydrobenzopyrans
Nasr-Esfahani, Masoud,Abdizadeh, Tooba
, p. 5004 - 5011 (2013/08/23)
Vanadatesulfuric acid (VSA), as a novel and heterogeneous nanorod catalyst, was used for an efficient synthesis of tetrahydrobenzo[b]pyrans using an aldehydes, 1,3-cyclohexanediones or β-ketoester and malononitrile in C 2H5OH/H2
