sites can lead to unique catalysis. In this study, a CePO4 catalyst was synthesized using a hydrothermal method and found to exhibit high catalytic performance for the chemoselective acetalization of 5-hydroxymethylfurfural with alcohols, in sharp contrast to other homogeneous and heterogeneous acid and/or base catalysts. In the presence of CePO4, various combinations of carbonyl compounds and alcohols
Effective Strategy for High-Yield Furan Dicarboxylate Production for Biobased Polyester Applications
作者:Minjune Kim、Yaqiong Su、Takayuki Aoshima、Atsushi Fukuoka、Emiel J. M. Hensen、Kiyotaka Nakajima
DOI:10.1021/acscatal.9b00450
日期:2019.5.3
(10–20 wt %). Kinetic studies combined with density functional theory (DFT) calculations were used to identify two key steps for the conversion of the cyclic acetalring to the corresponding methyl ester: (i) partial hydrolysis of the acetalring by OH– ions and (ii) subsequent oxidation of the hemiacetal in solution by molecular O2 on Au nanoparticles. These results represent a significant contribution
Two-Step One-Pot Reductive Amination of Furanic Aldehydes Using CuAlOx Catalyst in a Flow Reactor
作者:Alexey L. Nuzhdin、Marina V. Bukhtiyarova、Valerii I. Bukhtiyarov
DOI:10.3390/molecules25204771
日期:——
two-step process, which includes the condensation of furanic aldehydes (HMF and 5-acetoxymethylfurfural) with primary amines in methanol on the first step and the reduction of obtained imines with hydrogen in a flow reactor over CuAlOx catalyst derived fromlayereddoublehydroxide on the second step. This process does not require isolation and purification of intermediate imines and can be used to
Chemoenzymatic Synthesis of 5‐Hydroxymethylfurfural (HMF)‐Derived Plasticizers by Coupling HMF Reduction with Enzymatic Esterification
作者:Karen S. Arias、Jose M. Carceller、Maria J. Climent、Avelino Corma、Sara Iborra
DOI:10.1002/cssc.201903123
日期:2020.4.7
Biobased plasticizers substitutes of phthalates have been synthetized from HMF and carboxylicacids (or esters) through a chemoenzymatic cascade process that involves as first step the reduction of 5-hydroxymethylfurfural into 2,5-bis(hydroxymethyl)furan (BHMF) followed by the esterification of BHMF with carboxylicacids (or esters) using a supported lipase (Novozim 435). The reduction of HMF into