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4-甲基-2-氧代-6-芳氨基-二氢-吡喃-3-腈衍生物的合成

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有机化学 2024年第2期44卷 644-649页

作者：高宝昌石雨田媛张治国张婧如孙宇峰毛国梁戴凌燕东北石油大学化学化工学院黑龙江大庆163319 黑龙江省科学院大庆分院植物化学研究所黑龙江大庆163319 黑龙江八一农垦大学生命科学技术学院黑龙江大庆163319

2-吡喃酮衍生物在药物领域表现出了巨大的应用潜力,已有很多该类骨架结构用作合成药物活性分子前体.因此,探索新型2-吡喃酮衍生物的合成方法非常重要.以β-酮酰胺衍生物和氰基乙酸乙酯为原料一步反应合成了2-吡喃酮衍生物,具有产物收率... 详细信息

2-吡喃酮衍生物在药物领域表现出了巨大的应用潜力,已有很多该类骨架结构用作合成药物活性分子前体.因此,探索新型2-吡喃酮衍生物的合成方法非常重要.以β-酮酰胺衍生物和氰基乙酸乙酯为原料一步反应合成了2-吡喃酮衍生物,具有产物收率高(82%~93%)、反应条件温和产物后处理方便等优点,为2-吡喃酮生物的合成提供了新策略.

关键词： 2-吡喃酮 β-酮酰胺环化

马头营干热岩开采试验场地人工注水诱发地震探讨

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大地测量与地球动力学 2024年第9期44卷 905-909,936页

作者：王宁王亚玲张晓刚尹康达毛国良纪春玲河北省地震局石家庄市050021

结合马头营干热岩区7个临时测震台站的地震观测资料和M1井2022-06~09的加压注水数据,研究地震活动与注水压力、水流量的关系,同时分析诱发地震震源机制解及其对周边应力场的影响。结果表明,注水作业可能诱发了201个地震,震源深度主要集... 详细信息

结合马头营干热岩区7个临时测震台站的地震观测资料和M1井2022-06~09的加压注水数据,研究地震活动与注水压力、水流量的关系,同时分析诱发地震震源机制解及其对周边应力场的影响。结果表明,注水作业可能诱发了201个地震,震源深度主要集中在0~4 km,这个区段也是地围压较小的安全区域,发生中强震的几率较小;水流量、水压力的改变不仅影响诱发地震的时空分布特征,而且影响地震活动频度,应力积累到一定水平诱发地震发生,之后水流量、水压力与地震频度呈现正相关关系;注水量和震级之间关系不明显,压力和诱发地震震级呈线性相关;在持续注水量达到11 821 m^(3)、压力达到23.46 MPa时,有断层失稳、诱发地震的可能;最大诱发地震的震源机制解为走滑型,主压应力NNW向,与华北区域应力分布有一定偏差,可见M1井开采对局部应力分布有影响;从地震震中位置迁移规律推测,有新的地裂缝产生。

关键词：加压注水诱发地震震源机制解应力场马头营干热岩区

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Recursive filtering of multi-rate cyber-physical systems with unknown inputs under adaptive event-triggered mechanisms

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Frontiers of Information Technology & Electronic Engineering 2024年第2期25卷 250-259页

作者： Ying SUN Miaomiao FU Jingyang mao guoliang WEI Business School University of Shanghai for Science and TechnologyShanghai200093China Shanghai Caoyang Vocational School Shanghai200333China School of Electrical and Electronic Engineering Shanghai Institute of TechnologyShanghai201418China School of Intelligent Emergency Management University of Shanghai for Science and TechnologyShanghai200093China

Cyber-physical systems(CPSs)take on the characteristics of both multiple rates of information collection and processing and the dependency on information *** purpose of this paper is to develop a joint recursive filtering scheme that estimates both unknown inputs and system states for multi-rate CPSs with unknown *** cyberspace,the information transmission between the local joint filter and the sensors is governed by an adaptive event-triggered ***,the desired parameters of joint filters are determined by a set of algebraic matrix equations in a recursive way,and a sufficient condition verifying the boundedness of filtering error covariance is found by resorting to some algebraic operation.A state fusion estimation scheme that uses local state estimation is proposed based on the covariance intersection(CI)based fusion ***,an illustrative example demonstrates the effectiveness of the proposed adaptive event-triggered recursive filtering algorithm.

关键词： Cyber-physical systems Multi-rate Joint recursive filtering Adaptive event-triggered mechanisms Unknown inputs

Lending a hand to asymmetric trifluoromethylthiolation:enantioselective[2,3]-sigmatropic rearrangement of sulfonium ylides

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Science China Chemistry 2017年第12期60卷 1565-1566页

作者： guoliang mao Lei Chen Congyang Wang Provincial Key Laboratory of Oil&Gas Chemical Technology College of Chemistry and Chemical EngineeringNortheast Petroleum UniversityDaqing 163318China Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Molecular Recognition and FunctionCAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China

The introduction of a trifluoromethanesulfenyl group(SCF3)into organic molecules can,in principle,significantly enhance the cell-membrane permeability,metabolic stability and bioavailability because of its high lipophilicity and intrinsic electron-withdrawing *** a consequence,tremendous efforts have been made to develop diverse trifluoromethylthiolation protocols by using either

关键词： SCF Lending a hand to asymmetric trifluoromethylthiolation:enantioselective sigmatropic rearrangement of sulfonium ylides

Shaking table test study on performance and functionality of a typical telecommunication room after earthquakes

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Earthquake Engineering and Engineering Vibration 2024年第2期23卷 455-474页

作者： Li Bo Guo Endong Sun guoliang Ji Shuqiang mao Chenxi Wang Tao Han Di Li Xiaofei Key Laboratory of Earthquake Engineering and Engineering Vibration Institute of Engineering MechanicsChina Earthquake AdministrationHarbin 150080China Key Laboratory of Earthquake Disaster Mitigation Ministry of Emergency ManagementHarbin 150080China China Academy of Information and Communications Technology Beijing 100191China School of Architecture Engineering Binzhou UniversityBinzhou 256600China

Large numbers of basic transceiver stations,where the telecommunication room is one of the main components,comprise an important part of the telecommunication *** earthquakes,considerable economic loss from telecommunication systems is often associated with seismic damage and functional loss of the telecommunication ***,research related to this has been *** this study,shaking table tests were conducted for a full-scale typical telecommunication room,including a light-steel house and the necessary communication and power supply *** tests not only focused on the seismic damage to all the structures but also considered the functions of the communication and power supply of the *** interactions between these facilities and their effects on communication function were also *** with the damage to structures,the interruption of the power supply due to earthquakes is a weak ***,the damage indexes,together with their threshold values of different damage states for the communication and power supply equipment,were derived from the test *** results of this research can contribute to the literature gaps regarding seismic performance studies of telecommunication rooms,and can serve as a valuable reference for future research on its seismic fragility and economic losses evaluation.

关键词： telecommunication light-steel house communication equipment power supply equipment seismic performance functionality

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大麻二酚酸脱羧反应动力学分析

中国麻业科学 2024年第3期46卷 184-189页

作者：高宝昌石雨田媛张治国张婧如张旭毛国梁孙宇峰黑龙江省科学院大庆分院植物化学研究所黑龙江大庆163319 东北石油大学化学化工学院黑龙江大庆163319

以工业大麻花叶为原料,利用高效液相色谱(HPLC)和热重分析仪(TGA)对大麻二酚酸(CBDA)的脱羧反应过程进行表征,分析CBDA及其脱羧产物大麻二酚(CBD)在不同温度(50~145℃)和反应时间(4~180 min)的含量变化,并开展脱羧反应动力学分析。结果... 详细信息

以工业大麻花叶为原料,利用高效液相色谱(HPLC)和热重分析仪(TGA)对大麻二酚酸(CBDA)的脱羧反应过程进行表征,分析CBDA及其脱羧产物大麻二酚(CBD)在不同温度(50~145℃)和反应时间(4~180 min)的含量变化,并开展脱羧反应动力学分析。结果表明,CBDA脱羧反应遵循一级动力学,初步推测最佳脱羧温度区间为95~125℃,加热时间50~70 min。

关键词：大麻二酚酸加热脱羧反应动力学大麻二酚

Simple manganese carbonyl catalyzed hydrogenation of quinolines and imines

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Chinese Chemical Letters 2020年第7期31卷 1890-1894页

作者： Zelong Wang Lei Chen guoliang mao Congyang Wang Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Molecular Recognition and FunctionCAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China Provincial Key Laboratory of Oil&Gas Chemical Technology College of Chemistry and Chemical EngineeringNortheast Petroleum UniversityDaqing 163318China Physical Science Laboratory Huairou National Comprehensive Science CenterBeijing 101400China

Manganese-catalyzed hydrogenation of unsaturated molecules has made tremendous progresses recently benefiting from non-innocent pincer or bidentate ligands for ***,we describe the hydrogenation of quinolines and imines catalyzed by simple manganese carbonyls,Mn2(CO)10 or MnBr(CO)5,thus eliminating the prerequisite pincer-type or bidentate ligands.

关键词： Manganese Hydrogenation Quinolines Imines Homogeneous catalysis

Recent developments in homobimetallic reagents and catalysts for organic synthesis

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Chinese Science Bulletin 2011年第17期56卷 1753-1769页

作者： WU Wei GU DeLiang WANG ShiMeng NING YingNan mao guoliang Provincial Key Laboratory of Oil and Gas Chemical Technology College of Chemistry and Chemical Engineering Northeast Petroleum University Daqing 163318 China

Organometallics are a family of useful organic chemicals because they play important roles in organic synthesis as reagents and as *** can be classified according to the number of metals they *** compounds are important organometallics and they are either homobimetallic or heterobimetallic depending on whether the two metals are the same or *** this paper,we focus on homobimetallic *** compounds are generally used as dianions to react with electrophiles in organic ***,homobimetallics have also been used as catalysts in organic reactions such as in asymmetric reactions.

关键词：有机合成试剂催化剂有机金属化合物有机化工原料双金属化合物有机反应不对称反应数量分类

Effect of Alkylaluminum Activators on Ethylene Trimerization Based on 2,5-DMP/Cr（III）/TCE Catalyst System

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Chinese Journal of Chemistry 2011年第6期29卷 1149-1153页

作者： Jiang, Tao Ji, Rongxin Chen, Hongxia Cao, Chengang mao, guoliang Ning, Yingnan College of Material Science and Chemical Engineering Tianjin University of Science & Technology Tianjin 300457 China Department of Chemistry and Chemical Engineering Northeast Petroleum University Daqing HeUongjiang 163318 China

Ethylene trimerization toward 1-hexene catalytic system with 2,5-dimethylpyrrole （2,5-DMP）/Cr（III）/alkylaluminum/tetrachloroethane （TCE） was investigated. The effects of various cocatalysts on catalytic activity and product selectivity were discussed. The results showed that triethylaluminum （TEA）, trimethylaluminum （TMA）, tri-n-hexylaluminum （TNHA） and tri-isobutylaluminum （TIBA） were all effective cocatalysts for ethylene trimerization toward 1-hexene. 2,5-DMP/Cr（III）/TEA/TCE catalytic system afforded the best results for ethylene trimerization, while reducing the level of by-product formation. Some specific interaction modes of alkylaluminum with active Cr species in the catalytic cycle were proposed to explain the effect of cocatalyst on catalytic activity and 1-hexene selectivity.

关键词： ethylene oligomerization cocatalyst coordination modes