Green Synthesis and Catalysis最新文献_第9页

Catalyst-free and atom-economical [4+3] cycloaddition of azadienes with cyclic azomethine imines for facile synthesis of 1,2,4-triazepines 以无催化剂和原子经济性的[4+3]环加成法将偶氮二烯与环偶氮亚胺轻松合成 1,2,4-三氮杂卓

Green Synthesis and Catalysis Pub Date : 2024-02-01 DOI: 10.1016/j.gresc.2022.10.010

Lesong Li , Tao Liu , Weiwu Ren , Yang Wang

引用次数: 0

Chemo- and Site-selective Aerobic Oxidation of Methylbenzenes to Aromatic Aldehydes Enabled by An Fe(III) Photocatalyst 铁(III)光催化剂促成的甲基苯转化为芳香族醛的化学和位点选择性有氧氧化作用

Green Synthesis and Catalysis Pub Date : 2024-02-01 DOI: 10.1016/j.gresc.2024.02.002

Rui-Hong Li, Li-Tian Zhang, Kai-Cheng Yu, Shuai Liu, Xiangguo Hu, Mu-Hua Huang

引用次数: 0

1,6-Conjugate addition of para-quinone methides using gem-diborylcarbanions: Practical access to gem-diborylalkanes bearing vicinal tertiary/quaternary stereocenters 使用宝石二硼烷酮对对醌甲酰胺进行 1,6-共轭加成：获得带有邻位叔/季立体中心的宝石二硼烷的实用途径

Green Synthesis and Catalysis Pub Date : 2024-02-01 DOI: 10.1016/j.gresc.2022.12.003

Pu-Zhang Zi, Xing-Bang Liu, Quan-Hong Zhao, Min He, Yuan Huang

引用次数: 0

Synthesis of biheteroaryls via 2-methyl quinoline C(sp3)-H functionalization under metal-free conditions 在无金属条件下通过 2-甲基喹啉 C（sp3）-H 官能化合成生物杂芳香族化合物

Green Synthesis and Catalysis Pub Date : 2024-02-01 DOI: 10.1016/j.gresc.2022.10.006

Dahan Wang , Yuhan Yang , Fuhong Xiao , Jinbing Liu , Guojiang Mao , Guo-Jun Deng

引用次数: 0

Simple nucleophile/H2O promoted defluorinative ring-opening of gem-difluorocyclopropenes 简单的亲核体/H2O 促进的宝石-二氟环丙烯的脱氟开环作用

Green Synthesis and Catalysis Pub Date : 2024-02-01 DOI: 10.1016/j.gresc.2023.01.003

Yimiao He , Jingwen Yuan , Wen-Xin Lv , Peng Liu , Fan Teng , Qijin Mo , Zihua Wu , Chusheng Huang , Qianwen Liu , Honggen Wang

引用次数: 0

A water-soluble supermolecular cage for artificial light-harvesting nanoreactors 用于人工光收集纳米反应器的水溶性超分子笼

Green Synthesis and Catalysis Pub Date : 2024-02-01 DOI: 10.1016/j.gresc.2024.01.007

Xin Han, Luyao Ding, Xin-Qi Hao, Yujing Guo, Linlin Shi

引用次数: 0

Chemo- and Site-selective Aerobic Oxidation of Methylbenzenes to Aromatic Aldehydes Enabled by An Fe(III) Photocatalyst 铁(III)光催化剂促成的甲基苯转化为芳香族醛的化学和位点选择性有氧氧化作用

Green Synthesis and Catalysis Pub Date : 2024-02-01 DOI: 10.1016/j.gresc.2024.02.002

Rui-Hong Li, Li-Tian Zhang, Kai-Cheng Yu, Shuai Liu, Xiangguo Hu, Mu-Hua Huang

引用次数: 0

Visible-light-promoted tandem decarboxylation coupling/cyclization of N-aryl glycines with quinoxalinones: Easy access to tetrahydroimidazo[1,5-a]quinoxalin-4(5H)-ones 可见光促进 N-芳基甘氨酸与喹喔啉酮的串联脱羧偶联/环化：轻松获得四氢咪唑并[1,5-a]喹喔啉-4(5H)-酮

Green Synthesis and Catalysis Pub Date : 2024-02-01 DOI: 10.1016/j.gresc.2022.10.001

Zhen Tang, Chao Pi, Yangjie Wu, Xiuling Cui

引用次数: 0

Natural attapulgite supported nano-Ni catalysts for the efficient reductive amination of biomass-derived aldehydes and ketones 用于高效还原胺化生物质衍生醛酮的天然凹凸棒石支撑纳米镍催化剂

Green Synthesis and Catalysis Pub Date : 2024-02-01 DOI: 10.1016/j.gresc.2023.02.003

Jia Zhang , Jian Yang , Xuemei Li , Bin Mu , Hailong Liu , Chungu Xia , Aiqin Wang , Zhiwei Huang

{"title":"Natural attapulgite supported nano-Ni catalysts for the efficient reductive amination of biomass-derived aldehydes and ketones","authors":"Jia Zhang , Jian Yang , Xuemei Li , Bin Mu , Hailong Liu , Chungu Xia , Aiqin Wang , Zhiwei Huang","doi":"10.1016/j.gresc.2023.02.003","DOIUrl":"10.1016/j.gresc.2023.02.003","url":null,"abstract":"<div>The efficient synthesis of useful primary amines via reductive amination of biomass-based aldehydes and ketones over earth-abundant base metal catalysts is an attractive biomass value-adding technology yet facing lots of challenges. Herein, natural attapulgite (ATP) was applied as support for the fabrication of active Ni catalysts with different Ni loadings (5–30 wt%) by the deposition-precipitation method. The Ni/ATP-550 catalyst with 10–15 wt% Ni loadings was found to present the highest catalytic performance for the synthesis of valuable 5-amino-1-pentanol (5-AP) via reductive amination of biofurfural-derived 2-hydroxytetrahydropyran among a variety of commonly used oxide supports loaded Ni catalysts, as well as ATP supported nickel catalysts with other loadings, achieving 5-AP yield up to 94%. The intrinsic activity of the Ni/ATP catalysts was found to depend strongly on the Ni0 crystallite size and Ni0 fraction of the catalysts, which generally increased with increasing Ni0 crystallite size and fraction, owing probably to the hydrogenation of imine intermediate is a structure-sensitive reaction. The efficient 10Ni/ATP-550 catalyst also exhibited good activity and stability in the reductive amination of several other biomass-derived aldehydes and ketones to their corresponding primary amines with good to excellent yields (81%–99%). This work provided a clean and efficient natural ATP-supported non-noble metal nickel-based catalytic system for the reductive amination of aldehydes and ketones to synthesize high-value-added primary amines, which could be a promising candidate for the industrial production of amines.</div>","PeriodicalId":12794,"journal":{"name":"Green Synthesis and Catalysis","volume":"5 1","pages":"Pages 42-50"},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666554923000248/pdfft?md5=c2825c7eabef2243b4ead423d14f2aa4&pid=1-s2.0-S2666554923000248-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135962667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Metal-free and visible-light-mediated method enables the synthesis of olefins from ketones 通过无金属和可见光介导的方法从酮合成烯烃

Green Synthesis and Catalysis Pub Date : 2024-02-01 DOI: 10.1016/j.gresc.2024.02.001

Yu Zhang, Xinyu Han, Rong Wu, Jinxin Wang, Qiannan Li, Jingchuan Lin, Dingding Xia, Xin Hong, Shoubhik Das, Wei-Dong Zhang

引用次数: 0