14503-58-3Relevant articles and documents
METHOD FOR PRODUCING ARENE COMPOUNDS AND ARENE COMPOUNDS PRODUCED BY THE SAME
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Paragraph 0056, (2021/06/26)
Provided is a method for producing (alkyl)arene compounds represented by Formulae 3-1, 3-2, and 3-3 by the Friedel-Crafts alkylation reaction of alkyl halide compounds and arene compounds using organic phosphine compounds as a catalyst.
Development of a 4,4′-biphenyl/phosphine-based COF for the heterogeneous Pd-catalysed telomerisation of 1,3-butadiene
Hausoul, Peter J. C.,Eggenhuisen, Tamara M.,Nand, Deepak,Baldus, Marc,Weckhuysen, Bert M.,Klein Gebbink, Robertus J. M.,Bruijnincx, Pieter C. A.
, p. 2571 - 2579 (2013/09/24)
The improved synthesis, characterisation and application of a microporous 4,4′-biphenyl/phosphine-based covalent organic framework (COF) for the heterogeneous Pd-catalysed telomerisation of 1,3-butadiene with phenol and glycerol are presented. The solid polyphosphine is amorphous, microporous and an excellent support for Pd(acac)2. Solid-state NMR and DRIFT analysis of materials of varying Pd-loading show that bis-phosphine complexes of palladium are preferably formed. Under solvent- and base-free conditions, high conversions and selectivities are obtained for this catalyst material with both phenol and glycerol as substrates. The product selectivity, with both butenylation and telomerisation activity observed with phenol, can be tuned by variation of the metal loading. For glycerol it is shown that the selectivity to the undesired tri telomer is low under all applied conditions and, remarkably, that the heterogeneous catalyst outperforms its homogeneous PPh 3-based counterpart.
Regioselective iron-catalyzed decarboxylative allylic etherification
Trivedi, Rushi,Tunge, Jon A.
supporting information; experimental part, p. 5650 - 5652 (2010/02/28)
[Chemical Equation Presented] An anionic iron complex catalyzes the decarboxylative allylation of phenols to form allylic ethers in high yield. The allylation is regioselective rather than regiospecific. This suggests that the allylation proceeds through π-allyl iron intermediates in contrast to related allylations of carbon nucleophiles that have been proposed to proceed via π-allyl complexes. Ultimately, iron catalysts have the potential to replace more expensive palladium catalysts that are typically utilized for decarboxylative couplings.
Rate Constants for the Cyclisation of Some Aryl Radicals bearing Unsaturated ortho-Substituents
Abeywickrema, Anil N.,Beckwith, Athelstan L. J.
, p. 464 - 465 (2007/10/02)
Rate constants and Arrhenius parameters have been determined for ring-closure of o-alkenyl- and o-alkenyloxy-aryl radicals, and for deuterium atom transfer from tributyltin deuteride.
