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Visible-Light-Induced Radical Cascade Cyclization： Synthesis of（20S）-Camptothecin, SN-38 and Irinotecan

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Chinese Journal of Chemistry 2018年第11期36卷 1035-1040页

作者： Yao Yuan Wuheng Dong Xiaoshuang Gao xiaomin xie Dennis P. Curran Zhaoguo Zhang Shanghai Key Laboratory for Molecular Engineering Of Chiral Drugs School of Chemistry and Chemical Engineering Shanghai Jiao Tong Uni- versity 800 Dongchuan Road Shanghai 200240 China Department of Chemistry University of Pittsburgh Pittsburgh Pennsyl-vania PA 15260 USA

(20 S )‐Camptothecin, irinotecan and SN‐38 were successfully synthesized by a photocatalyzed radical cascade cyclization from an N ‐propargyl iodopyridinone and an arylisonitrile under visible light with a ruthenium catalyst. This synthetic method provided a useful entry into composing camptothecin family of antitumor agents in good yields under mild reaction conditions without the use of heavy metal reagents.

关键词： photocatalysis radicals camptothecin irinotecan SN‐38 ruthenium

PdCI2（Ph3P）2/Salicylaldimine Catalyzed Diarylation of Anilines with Unactivated Aryl Chlorides

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Chinese Journal of Chemistry 2017年第11期35卷 1749-1754页

作者： Xiaochun Tao Lei Li Yu Zhou Xuanying Qian Min Zhao Liangzhen Cai xiaomin xie School of Chemistry and Molecular Engineering East China University of Science and Technology Shanghai 200237 China School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai 200240 China

Triphenylphosphine and salicylaldimine could be used as a mixed ligand system to obtain a high catalytic activ- ity for palladium catalyzed diarylation of primary anilines with unactivated aryl chlorides by the synergistic effect of ligands. The activity and selectivity of the catalytic system could be improved by modifying the structure of sa- licylaldimine. In refluxing o-xylene, PdC12（Ph3P）2 with 2,5-ditrifluoromethyl N-phenylsalicylaldimine as a coligand shows high efficiency for the diarylation of various anilines. The catalytic system shows good toleration for the ste- ric hindrance of the substrates. The facile catalytic system works as well on the multiple arylation of 1, 1＇-biphenyl- 4,4＇-diamine with aryl chlorides to afford N,N,N＇y＇-tetraaryl-1,1＇-biphenyl-4,4＇-diamines which are important in- termediates of organic light emitting diode （OLED） hole transport materials.

关键词： palladium diarylation aryl chloride triphenylphosphine salicyaldimine

The Original Organism Assemblages and Kerogen Carbon Isotopic Compositions of the Early Paleozoic Source Rocks in the Tarim Basin, China

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Acta Geologica Sinica(English Edition) 2018年第6期92卷 2297-2309页

作者： HU Guang MENG Qingqiang WANG Jie Tengger xie xiaomin LU Longfei LUO Houyong LIU Wenhui State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum UniversityChengdu 610500China Shandong Provincial Key Laboratory of Depositional Mineralization and Sedimentary Mineral Shandong University of Science and TechnologyQingdao 266590ShandongChina Petroleum Exploration and Production Research Institute SinopecBeijing100083China Wuxi Research Institute of Petroleum Geology SINOPECWuxi 214151JiangsuChina Northwest University Xi'an 710069China

Original organisms are the biological precursors of organic matter in source rocks. Original organisms in source rocks are informative for oil-source rock correlation and hydrocarbon potential evaluation, especially for source rocks which have high-over level of thermal maturity. Systematic identification of original organism assemblages of the Lower Paleozoic potential source rocks and detailed carbon isotopic composition of kerogen analyses were conducted for four outcrop sections in the Tarim basin. Results indicated that the original organism assemblages of the lower part of the Lower Cambrian were composed mainly of benthic algae, whereas those of the Upper Cambrian and the Ordovician were characterized by planktonic algae. Kerogen carbon isotopic data demonstrated that the δ13 Ckerogen values of source rocks dominated by benthic algae are lower than-34‰, whereas the δ13 Ckerogen values of source rocks dominated by planktonic algae are higher than-30‰ in general. We tentatively suggested that the carbon species those are utilized by algae and the carbon isotopic fractionation during photosynthesis are the major controls for the δ13 Ckerogen values in the Lower Paleozoic source rocks in the Tarim basin. Correlating the δ13 C values of oils exploited in the Tarim basin, the original organism assemblages, and δ13 Ckerogen values of source rocks, it implied that the Lower Paleozoic oils exploited in the Tarim basin should be sourced from the source rocks with original organism assemblages dominated by planktonic algae, and the hydrocarbon sourced from the Cambrian benthic algae should be of great exploration potential in future. Original organism assemblages in source rocks can provide important clues for oil-source rocks correlation, especially for the source rocks with high thermal maturity.

关键词： Tarim basin the Lower Paleozoic source rock original organisms kerogen carbon isotopes

REE Compositions of Lower Ordovician Dolomites in Central and North Tarim Basin,NW China:A Potential REE Proxy for Ancient Seawater

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Acta Geologica Sinica(English Edition) 2008年第3期82卷 610-621页

作者： ZHANG Xuefeng HU Wenxuan JIN Zhijun ZHANG Juntao QIAN Yixiong ZHU Jingquan ZHU Dongya WANG Xiaolin xie xiaomin State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum Beijing 102249 State Key Laboratory of Mineral Deposits Research Nanjing University Nanjing 210093 Petroleum Exploration and Development Institute ofSINOPEC Beijing 100083 Western Branch Institute SINOPEC Exploration and Production Research Institute Uriimqi 830011 Institute of Geology and Geophysics Chinese Academy of Sciences Beijing 100029

Rare earth element compositions of Lower Ordovician dolomites in the Central and Northern Tarim Basin are studied. Most dolomite samples are more or less contaminated by clay minerals. Their rare earth element compositions have been consequently changed, showing both seawater-like and non-seawater-like features. The clay contamination should be disposed before the REE data are used. Through ICP-MS and ICP-AES analyses, the REE features are well documented. The clay contamination is quantitatively determined by microscopic investigation, trace elements and REE contents. The dolomites, at least in the Tarim Basin, are thought to be pure when their total LREE contents are less than 3×10^-6. Through comparison, the pure dolomites show similarities in REE patterns but differences in REE contents with co-existing pure limestone, which indicates that dolomitization may slightly change the REE compositions. Nevertheless, whatever the change is, the pure dolomites may act as a potential REE proxy for Ordovician seawater, which would be significant for ancient massive dolomite strata that lack limestone.

关键词： dolomite REE clay contamination Tarim Basin

Ru-catalyzed highly enantioselective hydrogenation of α-keto Weinreb amides

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Science China Chemistry 2013年第3期56卷 342-391页

作者： ZHAO MengMeng LI WanFang MA Xin FAN WeiZheng TAO xiaoming LI xiaoming xie xiaomin ZHANG ZhaoGuo School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai Institute of Organic Chemistry Chinese Academy of Sciences

Asymmetric hydrogenation of α-keto Weinreb amides has been realized with [Ru((S)-Sunphos)(benzene)Cl]Cl as the catalyst and CeCl 3·7H2O as the additive.A series of enantiopure α-hydroxy Weinreb amides(up to 97% ee) have been *** amount of CeCl3·7H2O is essential for the high reactivity and enantioselectivity and the ratio of CeCl3·7H2O to [Ru((S)-Sunphos)(benzene)Cl]Cl plays an important role in the hydrogenation reaction.

关键词： asymmetric hydrogenation α-keto Weinreb amides CeCl3·7H2O

Highly Efficient Kinetic Resolution of Allylic Alcohols through Redox Isomerization Process Catalyzed by Chiral BINAP-Rhodium Complex

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Highly Efficient Kinetic Resolution of Allylic Alcohols thro...

第十七届全国金属有机化学学术讨论会

作者： Kai Ren xiaomin xie Zhaoguo Zhang School of Chemistry and Chemical Engineering Shanghai JiaoTong University

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碳中和愿景下的能源变革

中国科学院院刊 2021年第9期36卷 1010-1018页

作者：黄震谢晓敏上海交通大学碳中和发展研究院上海200240

气候变化是当今人类面临的重大挑战之一,已成为全球性的非传统安全问题,严重威胁着人类的生存和可持续发展。我国碳达峰、碳中和承诺的提出,对我国建设人与自然和谐共生的社会主义现代化强国具有重要战略意义。面对我国如期实现碳达峰... 详细信息

气候变化是当今人类面临的重大挑战之一,已成为全球性的非传统安全问题,严重威胁着人类的生存和可持续发展。我国碳达峰、碳中和承诺的提出,对我国建设人与自然和谐共生的社会主义现代化强国具有重要战略意义。面对我国如期实现碳达峰、碳中和的挑战,文章提出通过能源变革,大力推进能源供给侧的电力脱碳与零碳化、燃料零碳化,以及能源需求侧的能源利用高效化、再电气化和智慧化,构建以新能源为主体,“化石能源+二氧化碳捕集利用与封存(CCUS)”和核能为保障的未来清洁零碳、安全高效能源体系。

关键词：碳中和能源变革电力零碳化燃料零碳化

A Clustering-Plane Based Energy Optimization Method for Image Segmentation

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A Clustering-Plane Based Energy Optimization Method for Imag...

Cationic Rhodium-Catalyzed Kinetic Resolution of Allylic Alcohols through Redox-Isomerization Reaction in Non-Coordinating Solvent

第30届中国控制与决策会议

作者： xiaomin xie Tingting Wang Bo Liu Kui Li College of Mechanical ＆ Electrical Engineering Hohai University

A novel regional energy minimization model is proposed in this paper,which aims to find the optimal clustering planes for respective objects in the image *** using the distances from the pixels to the center planes and spatial location information,the model assigns the pixels to the appropriate categories.A soft membership function is introduced to estimate the score which describes the possibility that the pixel falls into the ***,the spatial information is employed to amend the membership function so as to enhance the noise robustness of the *** parameters of the center planes are updated through the energy minimization,and constrained by the prior values as *** proposed model has been conducted on the synthetic images and real images,quantitatively and qualitatively,to demonstrate its performance.

关键词： Clustering Plane Energy Function Image Segmentation Fuzzy Membership

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Cationic Rhodium-Catalyzed Kinetic Resolution of Allylic Alc...