|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Recent progress in lantha-nide-catalyzed organic reactions in protic media显示文摘Lanthanide triflates are stable in water. It is possible for lanthanides to undergo many organic reactions in environmentally friendly solvents. This makes lanthanides very promising in the field of green chemistry. This review describes the recent development of the lanthanide-catalyzed organic reactions in protic solvents. Those reac-tions include Diels-Alder, Aldol, Allylation, acetalization, pericyclization, radical reactions as well as some newly-developed lanthnides-based catalysts. | LUO Sanzhong ZHANG Baolian XIAN Ming Adam Janczuk XIE Wenhua CHENG Jinpei Peng George Wang | 2001 | Chinese Science Bulletin2001，46，20： | 1 |
| 2 | Bond dissociation energies of the nitrogen-hydrogen bonds in anilines and in the corresponding radical anions:equilibrium acidities of aniline radical cations显示文摘 | BORDWELL F G ZHANG Xianman CHENG Jinpei | 1993 | Journal of Organic Chemistry1993，58，23： | 1 |
| 3 | Bifunctional catalysis of Morita-Baylis-Hillman (MBH) reaction with chiral primary-tertiary diamine: A non-typical MBH catalytic pathway显示文摘A simple primary-tertiary diamine has been explored as a novel catalyst for the Morita-Baylis-Hillman reaction of MVK and aryl aldehydes, and moderate to good chemical yields were obtained. Detailed mechanism study indicated that the diamine acted as a bifunctional cooperation catalyst via a bicyclic enamino-quaternary ammonium intermediate. | ZHANG Long LUO SanZhong CHEN LiuJuan LI JiuYuan CHENG JinPei | 2009 | Science China Chemistry2009，52，9： | 0 |
| 4 | Crystal structures of deoxygenation products and the characteristics of reactions of phenyl-(trihalomethyl)mercury with tetraphenylcyclone显示文摘The single crystal structures of the gem-dihalides (3a and 3b) produced from the reactions of letraphenylcy-clone (TPCP) with phenyl(trihalomethyl)mercury (trihalo = tribromo, bromodichloro) are reported. The structural parameters of the X-ray single crystal analysis vary slightly with the radius of the halogen atom in dihalides and are found to be related to the yields of the deoxygenation products. These results support the proposed mechanism for the carbene reaction of this type and reflect the key role of the structural characteristics of the incipient carbonyl ylide intermediate in choosing different competitive reaction pathways. | GU Wenxiang, WANG Hongxing, HUAN Zhenwei & CHENG JinpeiDepartment of Chemistry, Nankai University, Tianjin 300071, China Department of Applied Chemistry, South China Agriculture University, Guangzhou 510642, ChinaCorrespondence should be addressed to Cheng Jinpei (e-mail: jpcheng@nankai.edu.cn) | 2001 | Chinese Science Bulletin2001，46，4： | 0 |
| 5 | Cyclic peptides-assisted transport of metal ions across liquid-organic membrane显示文摘The formation of alkali and alkaline-earth metal picrate complexes with cyclo(Pro-Gly)n ionophores (1, n = 3; 2, n = 4) can facilitate the migration of metal ions across a bulk liquid CH2Cl2 membrane. The migration behavior was studied by measuring the solution absorption at 356 nm, using a UV/Vis spectrophotometer, and the rates can be determined by comparing the initial absorption of donor solutions with the absorption of the corresponding receiver solutions as the function of time. It was found that cyclic peptide 1 shows higher transport activity for the studied alkali and alkaline-earth metal ions than compound 2, which is related to the backbone flexibility of the cyclic peptides. The findings in this work suggest that the rate of ionophore-facilitated ion transport depends not only on the ability of complex formation in aqueous phase, but also on the ability of complex dissociation in organic phase. | Linjing Mu Hai Huang Jiaqi He Ning Zhang Jinpei Cheng | 2001 | Chinese Science Bulletin2001，46，3： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员