Photocatalytic valorization of furfural to value-added chemicals <i>via</i> mesoporous carbon nitride: a possibility through a metal-free pathway
作者:Deepak K. Chauhan、Venugopala R. Battula、Arkaprabha Giri、Abhijit Patra、Kamalakannan Kailasam
DOI:10.1039/d1cy01681d
日期:——
Strategizing the exploitation of renewable solar light could undoubtedly provide new insight into the field of biomass valorization. Therefore, for the first time, we reported a heterogeneous photocatalytic oxidationroute of renewable furfural (FUR) to produce industrial feedstocks maleic anhydride (MAN) and 5-hydroxy-2(5H)-furanone (HFO) under simulated solar light (AM 1.5G) using molecular oxygen (O2) as
制定可再生太阳能光的开发战略无疑可以为生物质价值化领域提供新的见解。因此,我们首次报道了可再生糠醛(FUR)的多相光催化氧化路线,在模拟太阳光(AM)下生产工业原料马来酸酐(MAN)和5-羟基-2(5 H)-呋喃酮(HFO) 1.5G) 使用分子氧 (O 2) 作为末端氧化剂和介孔石墨氮化碳 (SGCN) 作为光催化剂。SGCN 显示出优异的 FUR 光转化率 (>95%),对 MAN 和 HFO 的选择性分别为 42% 和 33%。此外,在自然阳光下对 MAN 的出色选择性 (66%) 表明了 MAN 可持续生产的开创性途径。此外,通过各种实验研究了 FUR 光氧化的潜在机制途径,包括清除剂研究、底物研究和电子自旋共振 (ESR) 研究,这些实验建设性地证明了单线态氧 ( 1 O 2 ) 和空穴的关键作用。h + ) 在 FUR 光氧化中。
Chiral induction in photochemical reactions-XII. Synthesis of chiral cyclobutane derivatives from (+)-5-menthyloxy-2-[5H]-furanone and ethylene
The temperature dependence of the diastereoselectivity in the photochemical [2 + 2]-cycloaddition of (+)-5-menthyloxy-2-[5H]-furanone to ethylene is investigated and the preparative isolation of the pure (1R,4S,5S)-as well as (1S,4S,5R)-4-(+)-menthyloxy-3-oxa-2-oxobicyclo-[3.2.0]-heptane is described.
Effect of acid-base properties of the medium on the reactions in the 2-furaldehyde-H2O2-H2O system with and without VOSO4
作者:L. A. Badovskaya、V. V. Poskonin、R. I. Ponomarenko
DOI:10.1134/s1070363214060140
日期:2014.6
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作者:N. K. Strizhov、V. V. Poskonin、O. A. Oganova、L. A. Badovskaya
DOI:10.1023/a:1013191807272
日期:——
The oxidation of 2-furaldehyde to beta-forniylacrylic acid in 0.1 N HClO4 containing hydrogen peroxide and sodium vanadate was studied by polarography using a dropping mercury electrode. The conversion of 2-furaldehyde and the yield of the products were found to depend on the reactant ratio. A mechanism was proposed which includes preliminary complex formation between the reactants.