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您的检索式：作者名="Shiqiang Mu"
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| 1 | Design,Synthesis,and Applications of ortho-Sulfur Substituted Arylphosphanes显示文摘Ortho-sulfur substituted arylphosphine oxides and arylphosphonates are the precursors of orthosulfurated arylphosphanes,which are widely utilized as ligands in transition metal-catalyzed reactions.However,efficient synthetic methods to access such compounds are sparse.Herein,highly valuable ortho-sulfur substituted arylphosphine oxides and arylphosphonates were constructed via difunctionalization of aryne precursors with P(O)H and elemental sulfur.This method avoids the use of transition metal catalysts and corrosive phosphorus chloride.The synthetic utility of this reaction is further demonstrated by the reduction of the synthesized products to access monophosphine ligands and their applications in cross-coupling reactions.Moreover,by introducing an alkyne moiety into the P(O)H substrate,cyclic sulfur-containing phosphines could be obtained in a one-pot reaction,which represents a new P,S structure that is inaccessible by known strategies. | Yu Guo Ying Luo Shiqiang Mu Jianke Su Jian Xu Qiuling Song | 2023 | CCS Chemistry2023，5，6： | 0 |
| 2 | Space Charge Characteristics of Oil-paper Insulation with New Paper and Aged Oil显示文摘Oil-paper compound insulation has been widely used in power transformers for quite a long time because of its good performances. The insulation gradually degrades under combined thermal, electrical and chemical stresses during routine operations, mainly because of space charges inside. This work investigated the space charge characteristics in oil-paper insulation under oil aging circumstance. New trans- former oil samples are thermally aged to obtain different aging states, and their physical and chemical properties are analyzed. New Kraft papers are dried in vacuum and fully immersed in these different aged oil samples, and three kinds of oil-paper samples are obtained. We use the pulsed electro-acoustic (PEA) method to measure space charge under both DC voltage-on and voltage-off conditions at room temperature. The effect of oil aging state on characteristics of space charge injection, accumulation, and decay is analyzed and discussed. The results show that comparing with the DC voltage-off condition, more charges are injected into samples at the interface of electrode and dielectric when DC voltage is on. When the oil-aged state gets worse, more charges are induced at both cathode and anode, more space charges are accumulated in the bulk, the area of negative charges is larger, and local electric field is distorted more seriously. Moreover, for the voltage-off condition, aged oil is good for space charge decay, and trapped positive space charges decay faster than trapped negative charges. | MU Haibao WANG Da WANG Shiqiang TIAN Jie LI Yuan WEI Yanhui ZHANG Guanjun | 2013 | 高电压技术2013，39，8： | 0 |
| 3 | [4+1]Cyclization of benzohydrazide and ClCF_(2)COONa towards 1,3,4-oxadiazoles and 1,3,4-oxadiazoles-d_(5)显示文摘A facile synthesis of 1,3,4-oxadiazoles and 1,3,4-oxadiazoles-d_(5) via[4+1]cyclization of ClCF_(2)COONa with non-amine compounds containing amino groups is developed.Of note,this is the first time that halofluorinated compounds are used as C1 synthon to construct deuterated nitrogen-heterocyclic compounds.The current protocol features simple operation,readily accessible raw materials,wide substrate scope and valuable products. | Ya Wang Shiqiang Mu Xin Li Qiuling Song | 2022 | Chinese Chemical Letters2022，33，3： | 0 |
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