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.
一系列含有酰胺、磺酰胺和芳基氨基甲酸酯等氨基酸配体的铝配合物被合成。
GULDENER D. B.; SIKKEMA D. J., CHEM. AND IND., 1980, NO 15, 628
作者:GULDENER D. B.、 SIKKEMA D. J.
DOI:——
日期:——
Synthesis and Characterization of Amidato Divalent Lanthanide Complexes and Their Use in Forming 2,4-Quinazolidinones from CO<sub>2</sub>and 2-Aminobenzonitriles
作者:Qianyu Wang、Chengrong Lu、Bei Zhao、Yingming Yao
DOI:10.1002/ejoc.201600291
日期:2016.5
Four amidato divalent lanthanidecomplexes, LnLn[N(TMS)2]THF}2 [n = 1, Ln = Eu (1); n = 2, Ln = Eu (3), Yb (4); HL1 = tBuC6H4CONHC6H3(iPr)2; HL2 = C6H5CONHC6H3(iPr)2] and L3Eu[N(TMS)2]THF}L32Eu(THF)2} (2) [HL3 = ClC6H4CONHC6H3(iPr)2], were synthesized and extensively characterized. This is the first time that the amidato lanthanide amides 1–4 were used to catalyze the reactions of CO2 and 2-aminobenzonitriles
Cyclopentadienyl-Free Rare-Earth Metal Amides [{(CH<sub>2</sub>SiMe<sub>2</sub>){(2,6-<i>i</i>Pr<sub>2</sub>C<sub>6</sub>H<sub>3</sub>)N}<sub>2</sub>}Ln{N(SiMe<sub>3</sub>)<sub>2</sub>}(THF)] as Highly Efficient Versatile Catalysts for CâC and CâN Bond Formation
Efficient methods have been developed for the direct synthesis of amides from aldehydes and a straightforward route to propiolamidines using cyclopentadienyl-freerare-earthmetalamides [(CH 2 SiMe 2 )(2,6-iPr 2C 6 H 3 )N} 2 }LnN(SiMe 3 ) 2 }-(THF)] [Ln = Yb (1), Y (2), Dy (3), Sm (4), Nd (5)] as versatilecatalysts. The results indicate that in the direct synthesis of amides from aldehydes the
已经开发出从醛直接合成酰胺的有效方法和使用不含环戊二烯基的稀土金属酰胺 [(CH 2 SiMe 2 )(2,6-iPr 2 C 6 H 3 )N } 2 }LnN(SiMe 3 ) 2 }-(THF)] [Ln = Yb (1), Y (2), Dy (3), Sm (4), Nd (5)] 作为通用催化剂。结果表明,在醛直接合成酰胺中,催化剂的活性顺序为2>1∼3∼4∼5。这些方法具有催化剂制备容易、催化剂载量低、底物转化产物转化率高、反应条件温和以及与多种底物相容等优点。