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Chinese Journal of Chemistry 2023年第3期41卷 294-300页

作者： Jian Chen Gao Deng You Wang shaolin zhu State Key Laboratory of Coordination Chemistry Jiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjingJiangsu210093 China School of Chemistry and Chemical Engineering Henan Normal UniversityXinxiangHenan453007 China

NiH-catalyzed multicomponent reductive hydrofunctionalization of alkenes is an attractive but poorly explored approach to rapidly increasing molecular *** this process,the selective generation of the desired product can be ***,we report that a highly chemo-,regio-and enantioselective reductive hydrocarbonylation of alkenes has been achieved using a chloroformate ester as a source of CO.A wide range of structurally diverseα-hydroxy ketones,privileged structural elements in bioactive molecules and useful building blocks,were obtained from such reactions with high enantiomeric purity.

关键词： Alkenes Asymmetric catalysis Hydrofunctionalization Multicomponent reactions Nickel Nickel hydride Synthetic methods Hydrocarbonylation

Enantioselective NiH-Catalyzed Reductive Hydrofunctionalization of Alkenes

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Chinese Journal of Chemistry 2022年第5期40卷 651-661页

作者： Yuli He Jian Chen Xiaoli Jiang shaolin zhu State Key Laboratory of Coordination Chemistry Chemistry and Biomedicine Innovation Center(ChemBIC)Jiangsu Key Laboratory ofAdvanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjingJiangsu210093 China

Enantioselective NiH-catalyzed reductive hydrofunctionalization of olefins has attracted much attention in recent *** simple chiral ligands,a wide array of functionalized olefins and electrophiles can undergo diverse transformations to afford hydrofunctionalized products,regio-and *** processes avoid the prior preparation of organometallic reagents,and can construct a stereogenic center at a carbon originating either from the olefin or from the *** review discusses the background,major progress and mechanistic investigations in this reaction.

关键词： Asymmetric catalysis Nicke catalysis Nickel hydride Hydrofunctionalization Alkene

Comparison of availability and reliability among different combined-GNSS/RNSS precise point positioning

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High Technology Letters 2020年第3期26卷 235-242页

作者： Chen Jian Yue Dongjie zhu shaolin Liu Zhiqiang Dai Jianbiao School of Earth Science and Engineering Hohai UniversityNanjing 211100P.R.China

With emergence of the BeiDou Navigation Satellite System(BDS), the Galileo Satellite Navigation System(Galileo), the Quasi-Zenith Satellite System(QZSS)and the restoration of the Global Navigation Satellite System(GLONASS), the single Global Positioning System(GPS) has been gradually expanded into multiple global and regional navigation satellite systems(multi-GNSS/RNSS). In view of differences in these 5 systems, a consolidated multi-GNSS/RNSS precise point positioning(PPP) observation model is deduced in this contribution. In addition, the performance evaluation of PPP for multi-GNSS/RNSS is conducted using a large number of the multi-GNSS experiment(MGEX) station datasets. Experimental results show that multi-GNSS/RNSS can guarantee plenty of visible satellites effectively. Compared with single-system GPS, PDOP, HDOP, and VDOP values of the multi-GNSS/RNSS are improved by 46.8%, 46.5% and 46.3%, respectively. As for convergence time, the static and kinematic PPP of multi-GNSS/RNSS are superior to that of the single-system GPS, whose reliability, availability, and stability drop sharply with the increasing elevation cutoff. At satellite elevation cutoff of 40 °, the single-system GPS fails to carry out continuous positioning because of the insufficient visible satellites, while the multi-GNSS/RNSS PPP can still get positioning solutions with relatively high accuracy, especially in the horizontal direction.

关键词： precise point positioning(PPP) positioning accuracy convergence rate multiple global and regional navigation satellite systems(multi-GNSS/RNSS) reliability and availability

Experimental research on daily deformation monitoring of steel box girder bridge based on BDS/GPS

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High Technology Letters 2018年第3期24卷 272-278页

作者：陈健 Yue Dongjie Liu Zhiqiang zhu shaolin Chen Hao School of Earth Science and Engineering Hohai University

In order to investigate the feasibility of BDS/GPS in the deformation monitoring of long-span bridges,analysis and research on aspects like number of visible satellites,PDOP value and monitoring precision are carried out. To analyze daily deformation characteristics of steel box girder bridge,observation data for 48 consecutive hours is computed by self-programmed software. Experiment results show that the monitoring-points on the bridge demonstrate obvious periodicity and recoverability in vertical and horizontal directions,meanwhile,changes in the elevation direction are relatively stable. The deformation-monitoring results of BDS/GPS combination system and GPS single system show good consistency. However,in a complex environment of the bridge,especially under the condition that satellite signals are severely affected,the advantages of BDS/GPS combination over GPS single system are more obvious.

关键词： dynamic deformation monitoring BDS/GPS baseline solution daily repeatability long-span bridge

Rapid Access to Chiralα-Alkylated Azacycles via NiH-Catalyzed Asymmetric Migratory Hydroalkylation of N-Heterocyclic Alkenes

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CCS Chemistry 2024年第4期6卷 898-904页

作者： Changpeng Chen Wenqing Guo Deyong Qiao Junqian Zhou You Wang shaolin zhu State Key Laboratory of Coordination Chemistry Jiangsu Key Laboratory of Advanced Organic MaterialsChemistry and Biomedicine Innovation Center(ChemBIC)School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210093 School of Chemistry and Chemical Engineering Henan Normal UniversityXinxiang 453007 Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Shanghai Jiao Tong UniversityShanghai 200240

Asymmetric migratory hydrofunctionalization of isomeric mixtures of alkenes provides a complementary approach for the selective introduction of a functional group into a remote C(sp3)-H ***,the simultaneous control of both regio-and enantioselectivity in this migratory process is a ***α-alkyl-substituted azacycles are key motifs in pharmaceuticals,natural products,and ***,we report a NiH-catalyzed asymmetric migratory hydroalkylation process for their efficient and selective *** this process,easily available isomeric mixtures of N-heterocyclic alkenes can be directly employed as starting materials,convergently delivering a variety of enantioenrichedα-alkylated azacycles with high levels of regio-and *** synthetic utility of this transformation is demonstrated by the facile synthesis of two bioactive alkaloids,(+)-connine and(R)-*** obtained chiralα-alkylated azacycles also readily undergo diverse derivatization,such as deconstructive halogenation and ring contraction.

关键词： alkenes alkylation asymmetric catalysis isomerization nickel

Ligand-Enabled NiH-Catalyzed Migratory Hydroamination:Chain Walking as a Strategy for Regiodivergent/Regioconvergent Remote sp^(3)C–H Amination

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CCS Chemistry 2021年第9期3卷 2259-2268页

作者： Yulong Zhang Jun He Peihong Song You Wang shaolin zhu State Key Laboratory of Coordination Chemistry Jiangsu Key Laboratory of Advanced Organic MaterialsChemistry and Biomedicine Innovation Center(ChemBIC)School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210093 College of Chemistry Chongqing Normal UniversityChongqing 401331

Direct and positionally selective aliphatic C–H functionalization is an attractive means with which to streamline chemical *** many possible reaction sites,most traditional methods need a polar-directing group nearby to achieve high regioand chemoselectivity and are often restricted to a single site of ***,we report a nondirected,remote sp^(3)C–H amination process with predictable and switchable regioselectivity.

关键词： C–H activation amination chain walking nickel regioselectivity

NiH-catalyzed asymmetric hydroalkynylation of α,β-unsaturated amides

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Green Synthesis and Catalysis 2022年第4期3卷 377-379页

作者： Yuanzheng Cheng zhuofan Gui Ran Tao You Wang shaolin zhu State Key Laboratory of Coordination Chemistry Jiangsu Key Laboratory of Advanced Organic MaterialsChemistry and Biomedicine Innovation Center(ChemBIC)School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210093China Department of Chemistry New York UniversityNew York 10003United States

An enantioselective NiH-catalyzed hydroalkynylation ofα,β-unsaturated amides is reported.A wide range ofα,β-unsaturated amides and bromoalkynes are suitable substrates for this reaction,which proceeds under mild conditions,allowing access to a variety of enantioenriched chiralβ-alkynyl amides.β,γ-Unsaturated amides can also be used as substrates and undergo theβ-selective hydroalkynylation with a slightly lower enantiomeric excess.

关键词： Alkenes Alkynylation Asymmetric catalysis Nickel Nickel-hydride

Recent Advances in Mn,Fe,Co,and Ni-Catalyzed Organic Reactions

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CCS Chemistry 2024年第3期6卷 537-584页

作者： Lu-Jie Li Yuli He Yunhui Yang Jun Guo Zhan Lu Congyang Wang shaolin zhu Shou-Fei zhu College of Chemistry Nankai UniversityTianjin 300071 School of Chemistry and Chemical Engineering Nanjing UniversityNanjingJiangsu Province 210093 Institute of Chemistry Chinese Academy of Sciences and University of Chinese Academy of SciencesBeijing 100190 Department of Chemistry Zhejiang UniversityHangzhouZhejiang Province 310058

This paper reviewed the recent research progress of organic reactions catalyzed by four typical earthabundant and 3d metal catalysts:Mn,Fe,Co,and Ni complexes and mainly focused on the reactions in which these 3d metal catalysts exhibited obvious advantages over other *** mechanism that makes these 3d metal catalysts show unusual properties is another focus of this *** outlook on 3d metal complexes-catalyzed organic reactions was also considered.

关键词： Earth-abundant metal catalysts sustainable organic synthesis structure-function relationships organometallic intermediates hydrocarbon transformations

铱催化β,β-二取代N-酰基烯胺的β-选择性不对称氢炔基化构建含β-手性季碳高炔丙基胺

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有机化学 2021年第9期41卷 3745-3747页

作者：江晓莉朱少林南京大学化学化工学院南京210093

β-手性季碳胺及其衍生物广泛存在于天然产物、药物和农药分子结构中(Scheme 1),不对称构建该类化合物是合成化学中的一大挑战.含β-手性季碳高炔丙基胺由于自身含有的炔基官能团能进行多样性的转化得到系列高附加值下游产物,更是吸引... 详细信息

β-手性季碳胺及其衍生物广泛存在于天然产物、药物和农药分子结构中(Scheme 1),不对称构建该类化合物是合成化学中的一大挑战.含β-手性季碳高炔丙基胺由于自身含有的炔基官能团能进行多样性的转化得到系列高附加值下游产物,更是吸引了合成化学家的关注.从简单易得的N-酰基烯胺和端炔出发的直接不对称氢炔基化策略是合成手性高炔丙基胺最高效直接的方法之一.

关键词：手性季碳合成化学炔丙基胺烯胺炔基化天然产物分子结构端炔

新型手性Quinim配体促进的镍催化的非活化烯烃不对称1,2-胺甲酰基-烷基双官能团化

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有机化学 2020年第12期40卷 4377-4379页

作者：何玉立朱少林南京大学化学化工学院南京210093

γ-内酰胺是药物分子和天然产物的一类重要核心骨架[1],其中常见的手性α-烷基取代的γ-内酰胺具有良好的生物活性(图1).该类化合物的手性合成传统上依赖于步骤繁琐的手性辅基策略,近期张万斌[2]和丁奎岭[3]课题组分别报道了不对称氢化... 详细信息

γ-内酰胺是药物分子和天然产物的一类重要核心骨架[1],其中常见的手性α-烷基取代的γ-内酰胺具有良好的生物活性(图1).该类化合物的手性合成传统上依赖于步骤繁琐的手性辅基策略,近期张万斌[2]和丁奎岭[3]课题组分别报道了不对称氢化的策略构建其中一类α-苄基取代的γ-内酰胺,Cramer课题组[4]报道了镍催化的不对称氢胺甲酰策略构建其中一类α-甲基取代的γ-内酰胺,然而通用的不对称催化策略到目前为止仍然没有实现.

关键词：不对称催化不对称氢化镍催化天然产物烷基取代手性合成药物分子策略构建