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浏览/检索结果: 共14条，第1-10条 帮助 限定条件 发表日期：2012    专题：北京大学    第一署名单位    第一作者单位    通讯作者单位     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Dual-frequency (20/40 kHz) ultrasonic assisted photocatalysis for degradation of methylene blue effluent: Synergistic effect and kinetic study 期刊论文 ultrasonics sonochemistry, 2012 Xiong, Shao Feng; Yin, Zhou Lan; Yuan, Zhang Fu; Yana, Wen Bin; Yang, Wen Yin; Liu, Jin Jian; Zhang, Fan 收藏  |  浏览/下载：14/0  |  提交时间：2015/11/12 Dual-frequency ultrasonic assisted phorocatalysis  Titanium dioxide  Methylene blue  Synergistic effect  AQUEOUS-SOLUTION  TIO2  DYE  NITROBENZENE  ENHANCEMENT  SONOLYSIS  FIELDS   Synthesis of benzothieno[2,3-b]thiophenes, [2,3-b:3 ',2 '-d]-dithienothiophenes and their selenium derivatives via electrophilic cyclization and McMurry cyclization 期刊论文 tetrahedron, 2012 Geng, Weizhi; Wang, Hanliu; Wang, Zitao; Zhang, Shaoguang; Zhang, Wen-Xiong; Xi, Zhenfeng 收藏  |  浏览/下载：3/0  |  提交时间：2015/11/12 Benzothieno[2,3-b]thiophene  Dilithio reagent  Dithienothiophene  Electrophilic cyclization  McMurry cyclization  FIELD-EFFECT TRANSISTORS  LOW-VALENT TITANIUM  CROSS-CONJUGATED OLIGOTHIOPHENES  ONE-STEP SYNTHESIS  HIGH-PERFORMANCE  ASYMMETRIC-SYNTHESIS  CARBON-SULFUR  ORGANIC SEMICONDUCTOR  CATALYZED CYCLIZATION  COUPLING REACTIONS   1,3-Butadienylzinc Trimer Formed via Transmetalation from 1,4-Dilithio-1,3-butadienes: Synthesis, Structural Characterization, and Application in Negishi Cross-Coupling 期刊论文 organometallics, 2012 Zhou, Yi; Zhang, Wen-Xiong; Xi, Zhenfeng 收藏  |  浏览/下载：2/0  |  提交时间：2015/11/12 CARBON BOND FORMATION  GROUP-14 METALLOLES  ZIRCONACYCLOPENTADIENES  COMPLEXES  ZINC  CUCL  1,4-DILITHIOBUTADIENES  DIIODOARENES  DERIVATIVES  EFFICIENT   Reactivity of Seven-Membered Azazirconacycloallenes and Four-Membered Zirconacycles toward Diphenylacetonitrile 期刊论文 organometallics, 2012 Zhao, Jing; Zhang, Shaoguang; Zhang, Wen-Xiong; Xi, Zhenfeng 收藏  |  浏览/下载：3/0  |  提交时间：2015/11/12 CARBON BOND FORMATION  MEDIATED MULTICOMPONENT REACTIONS  METAL-PROMOTED CYCLIZATION  ONE-POT SYNTHESIS  5-MEMBERED ZIRCONACYCLOCUMULENES  ZIRCONOCENE COMPLEXES  MIGRATORY INSERTION  EFFICIENT SYNTHESIS  VERSATILE BEHAVIOR  COUPLING REACTIONS   Palladium-Catalyzed Intermolecular Domino Reaction of gem-Dibromoenynes with Anilines; A One-Pot Synthesis of Quinolines and Quinolinones 期刊论文 synthesis stuttgart, 2012 Meng, Tianhao; Zhang, Wen-Xiong; Zhang, Hui-Jun; Liang, Yun; Xi, Zhenfeng 收藏  |  浏览/下载：3/0  |  提交时间：2015/11/16 alkenes  enynes  etherification  quinoline  quinolinone  HIGHLY EFFICIENT SYNTHESIS  C-N  3-COMPONENT SYNTHESIS  CROSS-COUPLINGS  BOND FORMATION  HETEROCYCLES  CYCLIZATION  INDOLES  DERIVATIVES  ACTIVATION   Image Compressive Sensing Recovery via Collaborative Sparsity 期刊论文 ieee journal on emerging and selected topics in circuits and systems, 2012 Zhang, Jian; Zhao, Debin; Zhao, Chen; Xiong, Ruiqin; Ma, Siwei; Gao, Wen 收藏  |  浏览/下载：2/0  |  提交时间：2015/11/12 Augmented Lagrangian  compressive sensing (CS)  image recovery  sparsity   Reducing blocking artifacts in compressed images via transform-domain non-local coefficients estimation 其他 2012-01-01 Zhang, Xinfeng; Xiong, Ruiqin; Ma, Siwei; Gao, Wen 收藏  |  浏览/下载：2/0  |  提交时间：2015/11/17 Carbonylation of 1-Lithiobutadiene with Carbon Monoxide Followed by Intramolecular Acyllithiation of C=C Double Bond and Intermolecular Acylation with Acid Chloride: Scope, Applications, and Mechanistic Aspects 期刊论文 journal of organic chemistry, 2012 Li, Heng; Liu, Lantao; Zhao, Fei; Wang, Congyang; Wang, Chao; Song, Oiuling; Zhang, Wen-Xiong; Xi, Zhenfeng 收藏  |  浏览/下载：2/0  |  提交时间：2015/11/11 ANION TRAPPING REACTIONS  DIRECT NUCLEOPHILIC ACYLATION  PAUSON-KHAND REACTION  ONE-POT SYNTHESIS  ORGANIC-SYNTHESIS  CYCLOPENTENONE PROSTAGLANDINS  STEREOSELECTIVE-SYNTHESIS  ORGANOLITHIUM COMPOUNDS  AROMATIC ACYLLITHIUMS  NAZAROV CYCLIZATION   Rare-Earth Metal Tris(trimethylsilylmethyl) Anionic Complexes Bearing One 1-Phenyl-2,3,4,5-tetrapropylcyclopentadienyl Ligand: Synthesis, Structural Characterization, and Application 期刊论文 inorganic chemistry, 2012 Xu, Ling; Wang, Zitao; Zhang, Wen-Xiong; Xi, Zhenfeng 收藏  |  浏览/下载：2/0  |  提交时间：2015/11/11 PMDETA = N,N,N&apos  X-RAY STRUCTURE  AMINE N-H  CATALYTIC ADDITION  SUBSTITUTED GUANIDINES  LANTHANIDE COMPLEXES  EFFICIENT ROUTE  C-H  CYCLOPENTADIENE DERIVATIVES  TERMINAL ALKYNES  ,N&apos  &apos  ,N&apos  &apos  -PENTAMETHYLDIETHYLENETRIAMINE   Regioselective Ring Expansion of 2,4-Diiminoazetidines via Cleavage of C-N and C(sp(3))-H Bonds: Efficient Construction of 2,3-Dihydropyrimidinesulfonamides 期刊论文 journal of the american chemical society, 2012 Wang, Yang; Chi, Yue; Zhang, Wen-Xiong; Xi, Zhenfeng 收藏  |  浏览/下载：2/0  |  提交时间：2015/11/11 EARTH-METAL COMPLEXES  CATALYTIC ADDITION  BETA-LACTAMS  ALPHA,BETA-UNSATURATED AMIDINES  STEREOSELECTIVE-SYNTHESIS  MULTICOMPONENT REACTIONS  SUCCINIMIDE DERIVATIVES  SUBSTITUTED GUANIDINES  TERMINAL ALKYNES  BUILDING-BLOCKS