检索结果-南通市图书馆

Chinese Chemical Letters 2006年第3期17卷 293-295页

作者： Rui Fang GUAN Chuan Jian ZHOU Sheng Yu FENG David J. BERG Stephen R. STOBART School of Chemistry Shandong University Ji＇nan 250100 School of Materials Science and Engineering Ji＇nan University Ji＇nan 250022 School of materials science and Engineering Shandong University Ji＇nan 250071 Department of Chemistry University of Victoria P.O. 3065 Victoria B.C. Canada V8W 3P6

Carbosilane dendrimers with p-bromophenyl core were synthesized by alternating Grignard and hydrosilylation reaction. And the α-naphthalenyl was connected to the core by the suzuki coupling reaction. A new carbosilane dendrimer with big π-conjugated structure [4-（naphthalen-l-yl）phenyl core] was given. It shows suzuki coupling reaction is an effective and powerful core-functionalization method and the satisfactory result can be obtained through prolonging the reaction time with the increase of the generation of dendrimer.

关键词： suzuki coupling reaction core functionalization carbosilane dendrimer naphthalene.

Highly efficient photocatalytic suzuki coupling reaction by Pd_(3)P/CdS catalyst under visible-light irradiation

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2021年第2期32卷 676-680页

作者： Huai-Qing Yang Qian-Qian Chen Fulai Liu Rui Shi Yong Chen Key Laboratory of Photochemical Conversion and Optoelecctronic MaterialsεCAS-HKU Joint Laboratory on New Materials Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China

Monodispersed palladium phosphide(Pd_(3)P)(5.2 ± 0.5 nm) was firstly applied to photocatalytic suzuki coupling reaction under visible light irradiation with CdS nanoflake as a photo sensitizer.This heterogeneous syst... 详细信息

关键词： Pd_(3)P CdS Photocatalysis suzuki coupling reaction

Well-dispersed Palladium Nanoparticles Catalysts Prepared by Wood Nanomaterials for suzuki coupling reaction

在线全文

学校读者我要写书评

暂无评论

Paper And Biomaterials 2017年第4期2卷 27-33页

作者： XiaoBo Lin JiaHao Wang Xing Han Min Wu Shijiazhuang Tiedao University Hebei Provincial Key Laboratory of Traffic Engineering materials Technical Institute of Physics and Chemistry Chinese Academy of Sciences

Herein, well-dispersed Palladium(Pd) nanoparticles(NPs) with good catalytic activities were prepared using a wood nanomaterial(WNM) as a reductant and a supporting agent. Various factors that influenced the NP morphologies, including reaction time, temperature, and precursor concentration were studied. The as-prepared Pd NPs/WNM showed good catalytic performance for suzuki coupling reactions.

关键词： Pd NPs synthesis catalyst suzuki coupling reaction

Synthesis and Charaterization of 4-Bromo-2-nitro-biphenyl by suzuki coupling reaction

在线全文

学校读者我要写书评

暂无评论

Synthesis and Charaterization of 4-Bromo-2-nitro-biphenyl by...

Synthesis of cycloparaphenylene under spatial nanoconfinement

河南省化学会2016年学术年会

作者： Yuru Liu Xianying Duan Weipeng Jiang Haitao Chen Wenxin Wang Ji Li Institution of Chemistry Henan Academy of Sciences

The suzuki coupling reaction of organic boron involved has attracted great attention. For this reaction,it has the features that the mild reaction conditions, substrate obtained easily, and functional group with good tolerance(such as amino, carboxyl and aldehyde, nitro group, cyano group, and halogen),moreover, products easily separated, seldom affected by the steric hindrance group, high efficiency,high regioselectivity and enantioselectivity. These advantages help it win the 2010 Nobel Prize in chemistry. Biphenyl compound is a kind of very important chemical intermediate, which is widely used in the fields of medicine, fuel, organic conductor, semiconductor and liquid crystal materials. In organic synthesis, the synthesis of these compounds is often based on the organic metal coupling reaction.In this paper, 4-Bromo-2-nitro-biphenyl has been synthesized by suzuki coupling. The effects of several factors on the reaction filed, such as temperature, time and base used in the reaction, are investigated. This obtained target product is characterized and analyzed by Chromatography, IR,NMR and GC-MS et al.

关键词： suzuki coupling reaction 4-Bromo-2-nitro-biphenyl synthesis

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2023年第6期34卷 298-300页

作者： Jinjie Li Huixian Jin Zhikun Shang Jie Wang Donglai Tian Yun Ding Aiguo Hu Shanghai Key Laboratory of Advanced Polymeric Materials School of Materials Science and EngineeringEast China University of Science and TechnologyShanghai 200237China

suzuki coupling reactions between symmetrical monomers were conducted in various mesoporous silica nanoreactors grafted with palladium catalysts,enabling the selective formation of[12]cycloparaphenylene precursor with separate yield up to 25%in one-pot reactions,much higher than that in homogeneous reaction.The spatial nanoconfinement of the nanoreactors promotes the macrocyclization while limits the concomitant linear oligomer formation,offering more possibilities for the synthesis of macrocycles from symmetrical monomers in one-pot reaction.

关键词： Nanoreactor Spatial confinement Cyclization reaction One-pot reaction suzuki coupling reaction

Efficient imidazolium salts for palladium-catalyzed Mizoroki-Heck and suzuki-Miyaura cross-coupling reactions

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2013年第5期24卷 433-436页

作者： Mojtaba Amini Mojtaba Bagherzadeh Sadegh Rostamnia Department of Chemistry Faculty of ScienceUniversity of Maragheh Chemistry Department Sharif University of Technology

The system,Pd（OAc）_2/imidazolium salts（L_2）,was found as an efficient catalyst in the Heck coupling reaction of olefins with aryl halides and suzuki reactions of various aryl halides with aryl boronic acids under aerobic condition.This catalytic system demonstrates great tolerance to a wide range of groups on all substrates of aryl halides,alkenes and aryl boronic acids.

关键词： lmidazolium salt Heck coupling reaction suzuki coupling reaction Pd（OAc）2

Cyclopalladated Ferrocenylimine: Highly Active Catalyst for the suzuki reaction of Aryliodides with Phenylboronic Acid

在线全文

学校读者我要写书评

暂无评论

有机化学 2003年第Z1期23卷 389-389页

作者： WANG Min YANG Liang-Ru ZHANG Jin-Li ZHAO Liang SONG Mao-Ping WU Yang-Jie Department of Chemistry Zhengzhou University Zhengzhou 450052 Department of Chemistry Zhengzhou University Zhengzhou 450052 Department of Chemistry Zhengzhou University Zhengzhou 450052 Department of Chemistry Zhengzhou University Zhengzhou 450052 Department of Chemistry Zhengzhou University Zhengzhou 450052 Department of Chemistry Zhengzhou University Zhengzhou 450052

　　Transition-metal catalyzed reaction represents an extremely versatile method in organic synthesis. [1] Searching for highly efficient catalysts has been the aim of organic chemists. Palladium catalyzed coupling of aryl halides with arylboronic acids, suzuki reaction, is one of the most powerful methods for carbon-carbon bond formation. [2] Here we report the high efficiency of cyclopalladated ferrocenylimine 1 for the suzuki coupling reaction of aryl iodides with phenylboronic acid. Excellent yields and high turnover numbers were obtained under optimized conditions after repeated uses (Schemes 1, 2).……

关键词： suzuki coupling reaction organic synthesis arylboronic acids high efficiency aryl halides methods for