84132-74-1Relevant articles and documents
Probing the mechanism of the Heck reaction with arene diazonium salts by electrospray mass and tandem mass spectrometry
Sabino, Ad?o A.,Machado, Angelo H. L.,Correia, Carlos Roque D.,Eberlin, Marcos N.
, p. 2514 - 2518 (2004)
Key ionic intermediates of the Heck reaction of arene diazonium salts have been intercepted and structurally characterized by ESI-MS/MS. The use of electrospray ionization enables the ionic species to be transferred smoothly to the gas phase. A catalytic cycle for this reaction involving all the Pd cationic species intercepted has been proposed (see scheme).
Chemo-Enzymatic Metathesis/Aromatization Cascades for the Synthesis of Furans: Disclosing the Aromatizing Activity of Laccase/TEMPO in Oxygen-Containing Heterocycles
Risi, Caterina,Zhao, Fei,Castagnolo, Daniele
, p. 7264 - 7269 (2019/10/02)
The unprecedented Trametes versicolor laccase/TEMPO-catalyzed aromatization of 2,5-dihydrofurans to furans is described. A variety of furan derivatives have been synthesized in moderate to high conversions (21-99%) and yields (20-76%) under mild reaction
Regioselective Heck reaction catalyzed by Pd nanoparticles immobilized on DNA-modified MWCNTs
Hajipour, Abdol R.,Khorsandi, Zahra,Farrokhpour, Hossein
, p. 59124 - 59130 (2016/07/06)
This is the first report of regioselective Heck reaction of aryl iodides with 2,3-dihydrofuran using heterogonous nanocatalyst. Herein, palladium nanoparticles is immobilized on DNA-modified multi walled carbon nanotubes and characterized by FT-IR spectroscopy, UV-vis spectroscopy, field emission scanning electron microscopy, X-ray diffraction, transmission electron microscopy, inductively coupled plasma and elemental analysis. DNA as a well-defined structure and biodegradable natural polymer generate the palladium catalyst which showed high activity in common and regioselective Heck reaction in excellent yields and good selectivity under ligand-free and mild reaction conditions. Moreover, the catalyst could be recovered and reused at least nine times without any considerable loss of its catalytic activity.