2022年9月9日 · In this prospect, we have developed a multigram-scale procedure for HMF by reacting d -fructose with Purolite CT275DR─an acidic resin─in a dimethyl carbonate (DMC)/tetraethyl ammonium bromide (TEAB) biphasic system. Reactions performed in an autoclave for 2 h at 110 °C using up to 40 gram of d -fructose …

2023年6月1日 · The synthesized catalyst Cu@C-POP showed excellent catalytic performance (98 % BHMF yield) at 150 °C and 20 bar H 2, which is attributed to the coexisting Cu 0 and Cu x+ active surface species inside within the nanocages of the POP framework have high active for the hydrogenation of HMF to BHMF.

BHMF was yielded from the reduction of HMF by NaBH 4 and was characterized by 1 H NMR, 13 C NMR, and ESI-MS (see Figures S1–S3). The reaction of BHMF with N-phenylmaleimide derivatives using optimal conditions gave the Diels–Alder products, 3A, 4B, 3C, and 4C.

2025年2月27日 · Despite the possible steric hindrance of BHMF by the polymer chain itself, this work demonstrates that thermoreversible cross-linking in these systems can be realized, as proven by 1 H NMR and IR spectroscopy. The rate at which this occurs appears to be dependent on the aliphatic spacer in the repeating unit.

本报告研究了 BHMF 和N-苯基马来酰亚胺衍生物在最佳反应条件下的 Diels-Alder 环加成反应。 首先，在NaBH 4存在下将HMF还原为BHMF，然后研究BHMF与N-苯基马来酰亚胺衍生物的Diels-Alder反应以产生Diels-Alder加合物。

2020年1月25日 · The hydrogen-bonding interaction between HMF/BHMF and DES was confirmed by 1 H NMR characterization, which enables the selective hydrogenation of HMF at high concentration in DESs. In addition, the reaction efficiency of HMF hydrogenation in DESs was verified to be strongly associated with the viscosity of DESs and the p Ka values of hydrogen ...

BHMF was yielded from the reduction of HMF by NaBH 4 and was characterized by 1 H NMR, 13 C NMR, and ESI-MS (see Figures S1–S3). The reaction of BHMF with N-phenylmaleimide derivatives using optimal conditions gave the Diels–Alder products, 3A, 4B, 3C, and 4C.

2021年11月15日 · Herein, we propose a more stable aldehyde-free substrate, 2,5-bis (hydroxymethyl)furan (BHMF), for electrocatalytic FDCA production. Featuring much higher thermal and chemical stability than HMF (Fig. 1), BHMF will be attractive to develop downstream derivatives due to more accessible storage and high purity.

2024年2月29日 · BHMF was detected in the catholyte using 1 H NMR (Figure S1, Supporting Information). Previous reports [ 6 , 12 ] indicated enhanced utilization of hydrogen species on the AgCu surface at low current densities, making it a suitable catalyst for selective HMF reduction.

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