Cycloaddition of Aziridine with CO<sub>2</sub>/CS<sub>2</sub> Catalyzed by Amidato Divalent Lanthanide Complexes
作者:Yueqin Xie、Chengrong Lu、Bei Zhao、Qianyu Wang、Yingming Yao
DOI:10.1021/acs.joc.8b02924
日期:2019.2.15
Eu (1); n = 2, Ln = Eu (3), Yb (4); HL1 = tBuC6H4CONHC6H3(iPr)2; HL2 = C6H5CONHC6H3(iPr)2) and L3Eu[N(SiMe3)2]THF}L32Eu(THF)2} (2) (HL3 = ClC6H4CONHC6H3(iPr)2)) were applied in the cycloaddition reactions of aziridines with carbon dioxide (CO2) or carbon disulfide (CS2) under mild conditions. The corresponding oxazolidinones and thiazolidine-2-thiones were obtained in good to excellent yields with
这是酰胺酰胺镧酰胺(L n Ln [N(SiMe 3)2 ] THF}} 2(n = 1,Ln = Eu(1); n = 2,Ln = Eu(3),Yb (4); HL 1=t BuC 6 H 4 CONHC 6 H 3(i Pr)2; HL 2= C 6 H 5 CONHC 6 H 3(i Pr)2)和L 3Eu [N(SiMe 3)2 ] THF} L 3 2 Eu(THF)2 }(2)(HL 3 = ClC 6 H 4 CONHC 6 H 3(i Pr)2))被用于以下反应的环加成反应:氮丙啶与二氧化碳(CO 2)或二硫化碳(CS 2)在温和的条件下。获得了相应的恶唑烷酮和噻唑烷-2-硫酮,具有良好的收率和优异的官能团耐受性。
Optimizing ring-opening polymerization of ε-caprolactone by using aluminum complexes bearing amide as catalysts and their application in synthesizing poly-ε-caprolactone with special initiators and other polycycloesters
作者:Hsi-Ching Tseng、Fu-Shen Chen、Michael Y. Chiang、Wei-Yi Lu、Yu-Hsieh Chen、Yi-Chun Lai、Hsuan-Ying Chen
DOI:10.1039/c5ra21252a
日期:——
A series of aluminum complexes bearing amidate ligands, including acylamide, sulfonamide, and aryl carbamate, was synthesized.