Magnetic guanidinylated chitosan nanobiocomposite: A green catalyst for the synthesis of 1,4-dihydropyridines.
Sign Up to like & getrecommendations! Published in 2018 at "International journal of biological macromolecules"
DOI: 10.1016/j.ijbiomac.2018.05.035
Abstract: In this study, a novel magnetic guanidinylated chitosan nanobiocomposite was synthesized and characterized by Fourier transform infrared (FT-IR) spectroscopy, elemental analysis (CHN), thermogravimetric analysis (TGA), X-ray diffraction (XRD) pattern, energy dispersive X-ray (EDX) analysis, vibrating… read more here.
Keywords: chitosan nanobiocomposite; magnetic guanidinylated; microscopy; synthesis dihydropyridines ... See more keywords
Anchored sulfonic acid on silica-layered NiFe2O4: A magnetically reusable nanocatalyst for Hantzsch synthesis of 1,4-dihydropyridines
Sign Up to like & getrecommendations! Published in 2019 at "Polyhedron"
DOI: 10.1016/j.poly.2019.04.035
Abstract: Abstract In this study, the immobilization of sulfonic acid on silica-layered nickel ferrite, NiFe2O4@SiO2@SO3H, was investigated. The sulfonated Ni-nanocatalyst was then characterized using FT-IR, SEM, EDX, XRD and VSM analyses. Catalytic activity of the Ni-nanocomposite… read more here.
Keywords: acid silica; sulfonic acid; silica layered; synthesis dihydropyridines ... See more keywords
Reductive CO2 Fixation via the Selective Formation of C-C Bonds: Bridging Enaminones and Synthesis of 1,4-Dihydropyridines.
Sign Up to like & getrecommendations! Published in 2020 at "Organic letters"
DOI: 10.1021/acs.orglett.0c02963
Abstract: Herein, a selective tandem C-C bond-forming reaction with CO2 was developed to realize the bridging of enaminones and synthesis of 1,4-dihydropyridines, respectively. n-Butylamine significantly promoted this CO2 deoxymethylenation procedure catalyzed by 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) and ZnCl2.… read more here.
Keywords: synthesis dihydropyridines; bridging enaminones; enaminones synthesis; formation ... See more keywords
Theoretical prediction of the synthesis of 2,3-dihydropyridines through Ir(III)-catalysed reaction of unsaturated oximes with alkenes
Sign Up to like & getrecommendations! Published in 2017 at "RSC Advances"
DOI: 10.1039/c6ra25501a
Abstract: In spite of their widespread use as catalysts, 1,2,3,4,5-pentamethylcyclopentadienyl (Cp*) iridium complexes have been rarely employed in the synthesis of pyridine derivatives. Herein, we used density functional theory (DFT) calculations to predict the [Cp*Ir(OAc)]+-catalysed synthesis… read more here.
Keywords: unsaturated oxime; migratory insertion; synthesis dihydropyridines; reaction ... See more keywords