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Electrocatalytic cleavage of a lignin β-O-4 model compound and coupling with nitrogen-containing aromatics using Prussian blue analogue-derived nickel–cobalt spinel

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Journal of Energy Chemistry 2025年第1期100卷 628-636页

作者： Yi Qi Xueying Chen Bowen Liu Xuliang Lin Xueqing Qiu Yanlin Qin Guangdong Provincial Key Laboratory of plant Resources Biorefinery School of Chemical Engineering and Light Industry Guangdong University of Technology Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center Guangdong Basic Research Center of Excellence for Ecological Security and Green development Guangdong University of Technology

Electrochemical conversion of lignin for the production of high-value heterocyclic aromatic compounds has great *** demonstrate the targeted synthesis and cation modulation of NiCo2O4spinel nanoboxes,synthesized via cation exchange and calcination *** catalysts exhibit excellent efficacy in the electrocatalytic conversion of lignin model compounds,specifically 2-phenoxy-1-phenylethanol,into nitrogen-containing aromatics,achieving high conversion rates and *** catalysts were synthesized via a cation exchange and calcination oxidation process,using Prussian blue nanocubes as *** porous architecture and polymetallic composition of the NiCo2O4spinel demonstrated superior performance in electrocatalytic oxidative coupling,achieving a 99.2 wt%conversion rate of the 2-phenoxy-1-phenylethanol with selectivities of 37.5 wt%for quinoline derivatives and 31.5 wt%for *** innovations include the development of a sustainable one-pot synthesis method for quinoline derivatives,the elucidation of a multistage reaction pathway involving CAO bond cleavage,hydroxyaldol condensation,and CAN bond formation,and a deeper mechanistic understanding derived from DFT *** work establishes a new strategy for lignin valorization,offering a sustainable route to produce high-value nitrogen-containing aromatics from renewable biomass under mild conditions,without the need for additional reagents.

关键词： Spinel Biomass valorization Electrocatalysis Lignin oxidation Coupling

Mahuangchiside, a New Flavone Glycoside from Chirita fimbrisepala

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Chinese Chemical Letters 2000年第2期11卷 131-132页

作者： Li Dong ZHOU Jing Guang YU Jia GUO (inst.tute of medicinal plant development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100094) inst. of medicinal plant development Chinese Academy of Medical Sciences Peking Union Medical College Beijing 100094 China

A new flavone glycoside, named mahuangchiside, was isolated from the root of Chirita fimbrisepala Hand.-Mazz. The structure was elucidated as 5,4'-dihydroxy-6-methoxyflavone-7-O-beta-D-xylopyranosyl(1-->2)-beta-D-xylo... 详细信息

关键词： Chirita fimbrisepala Gesneriaceae mahuangchiside flavone flavonoid

Erythrinarbine,a Novel nor-A ring Erythrina Alkaloid from Erythrina arborescens

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Chinese Chemical Letters 1999年第2期10卷 139-142页

作者： Dong Lei YU Jian GUO Li Zhen XU Shi Lin YANG(inst.tute of medicinal plant development, Chinese Academy of Medical Sciencesand Peking Union Medical College, Beijing 100094) inst. of medicinal plant development Chinese Academy of Medical Sciences Peking Union Medical College Beijing 100094 China

Erythrinarbine 2, a novel alkaloid was isolated from the stem of Erythrina arborescens Roxb. Its structure and stereochemistry were elucidated on the basis of the spectral analysis (C-13 - H-1 COSY, H-1-H-1 COSY, NOES... 详细信息

关键词： Erythrina arborescens erythrinarbine nor-A ring erythrina alkaloid

Cypripediquinone A, a new phenanthraquinone from Cypripedium macranthum (Orchidaceae)

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Chinese Chemical Letters 2000年第1期11卷 37-38页

作者： Jian Hua JU Jun Shan YANG Jin LI Pei Gen XIAO (inst.tute of medicinal plant development. Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100094) inst. of medicinal plant development Chinese Academy of Medical Sciences Peking Union Medical College Beijing 100094 China

A new phenanthraquinone, cypripediquinone A, was isolated from the rhizome of Cypripedium macranthum ( Orchidaceae ) and its structure was established as 2,4,7-trimethoxy-9, 10- phenanthraquinone mainly by spectroscop... 详细信息

关键词： Cypripedium macranthum cypripediquinone A

Muricatenol, a Linear Acetogenin from Annona muricata (Annonaceae)

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Chinese Chemical Letters 2000年第3期11卷 239-242页

作者： De Yu LI Jing Guang YU Xiu Zhen LUO Lan SUN Shi Lin YANG (inst.tute of medicinal plant development. Chinese Academy of Medical Sciences and Peking Union Medical College. Beijing 100094) inst. of medicinal plant development Chinese Academy of Medical Sciences Peking Union Medical College Beijing 100094 China

Muricatenol 1, a new acetogenin, has been isolated from the seeds of Annona muricata L.. Compound 1 is a C-37 acetogenin without any THF rings. with four hydroxyls and one double bond in the long aliphatic chain. The hydroxyls of 1 are located at C-4, C-10, C-18 and C-19. respectively. The vicinal diet at C-18/C-19 is threo-configuration, and the double bond at C-14/C-15 is cis-configuration.

关键词： Annona muricata Annonaceae acetogenins muricatenol

Studies on the Chemical Constituents of Lysimachia capillipes Hemsl

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Chinese Chemical Letters 1998年第12期9卷 0-0页

作者： Chen XIE Li Zhen XU Bao Hua ZHAO and Shi Lin YANG(inst.tute of medicinal plant development, Chinese Academy of Medical Sciences and PekingUnion Medical College, Beijing 100094) inst. of medicinal plant development Chinese Academy of Medical Sciences Peking Union Medical College Beijing 100094 China

Eight compounds were isolated from the ethanolic extracts of Lysimachia capillipes Hemsl. They were identified as capilliplactone l, capillipnin 2,β-daucosterol 3, succinic acid 4, quercetin 5, 3',4',5,5',7-pentahydroxyflavone 6, quercetin-3-O-β-D-glucopyranoside 7 and kaempferol 8 on the basis of chemical and spectral methods. Among them, 1 and 2 were new, their structures were established as all-cis-5-deoxy-pentonic acid-y-lactone and 1,2,4,5-tetrahydroxy-3-n-pentylbenzen-2,4-di-O - D-glucopyranoside through their spectral data (1HNMR, 13CNMR, DEPT, 1H-1H COSY, 1H-13C COSY, HMBC etc).

关键词： Lysimachia lysimachia capillipes, capillplactone capillipnin

New Flavonoid Glycoside from Thalictrum przewalskii

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Chinese Chemical Letters 1999年第4期10卷 295-296页

作者： Shi Chun YU Qing Li WU Li Wei WANG Pei Gen XIAO(inst.tute of medicinal plant development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100094.) inst. of medicinal plant development Chinese Academy of Medical Sciences Peking Union Medical College Beijing 100094 China

A new flavonoid glycoside, 5, 7-dihydroxy-4'-methoxyflavonoid 7-Q-[6-O-(4-O-acetyl-alpha-L-rhamnosyl)-3-O-beta-D-glucosyl]-6-O-acetyl-beta-D-glucoside was isolated from Thalictrum przewalskii. Its structure was determ... 详细信息

关键词： Thalictrum Thalictrum przewalskii flavonoid glycoside 5, 7-dihydroxy-4 '-methoxyflavonoid 7-O-[6-O-(4-O-acetyl-alpha-L-rhamnosyl)-3-O-beta-D-glucosyl]-6-O-acetyl-beta-D-glucoside

New Phloroglucinol Glycosides from Hypericum japonicum

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Chinese Chemical Letters 1998年第5期9卷 469-470页

作者： Qing Li WU Sheng Ping WANG Li Wei WANG Jun Shan YANG Pei Gen XIAO(inst.tute of medicinal plant development, Chinese Academy of Medical Sciencesand Peking Union Medical College, Bejing 100094) inst. of medicinal plant development Chinese Academy of Medical Sciences Peking Union Medical Colleg Beijing 100094 China

Two new phloroglucinol glycosides, 2,6-dihydroxy-3,5-dimethyl-1-isobutyrylbenzene-4-O-beta-D-glucoside and 2,6-dihydroxy-3,5-dimethyl-1-(2-methylbutyryl) benzene-4-O-beta-D-glucoside were isolated from Hypericum japon... 详细信息

关键词： Hypericum japonicum Guttiferae phloroglucinol glycoside 2-methyl-1-(2,6-dihydroxy-3,5-dimethylphenyl)-1-propanone-4-O-beta-D-glucoside 2-methyl-1-(2,6-dihydroxy-3,5-dimethyl phenyl)-1-butanone-4-O-beta-D-glucoside

A new Kaurane Derivative from Aralia Fargesii

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Chinese Chemical Letters 1999年第8期10卷 673-674页

作者： Yu Mei ZHANG Jun Shan YANG Xu Dong XU (inst.tute of medicinal plant development, Chinese Academy of Medical Science Peking Union Medical College, Beijing 100094) inst. of medicinal plant development Chinese Academy of Medical Science Peking Union Medical College Beijing 100094 China

A new ent-kaurane diterpene was isolated from the rhizome of Aralia fargesii. On the basis of chemical and spectral evidences, its structure was established as 16 alpha-hydroxy-17-isovaleroyloxy-ent-kauran-19-oic acid.

关键词： Aralia fargesii ent-kaurane 16 alpha-hydroxy-17-isovaleroyloxy-ent-kauran-19-oic acid