guest molecule. β-Cyclodextrin catalyzes chemical reactions by supramolecular catalysis with high efficiency. No investi-gations of ringopening of epoxides with aromatic amines in the presence of β-cyclodextrin in water have been reported. Our earlier study on ester hydrolysis successfully catalyzed by β-cyclodextrin derivatives [21-23] promoted us Highly Effective Opening of Epoxides with Aromatic Amines
MoO<sub>3</sub> Nanoparticles Synthesis via Hydro-Solvothermal Technique and Its Application as Catalyst for Efficient Ring Opening of Epoxides With Amines Under Solvent-Free Conditions
作者:Reihaneh Malakooti、Soheila Shafie、Rahele Hosseinabadi、Majid M. Heravi、Masoumeh Zakeri、Narges Mohammadi
DOI:10.1080/15533174.2013.809740
日期:2014.11.26
Molybdenum trioxide nanoparticles were synthesized using ammoniumheptamolybdatetetrahydrate (AHM) through a facile hydro-solvothermal technique. The materials were characterized via X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The mean diameter of semispherical α-MoO3 nanoparticles was determined to be 20 ± 5 nm. The catalytic performance
Efficient ring opening of epoxides with aromatic amines catalyzed by ZrO(OTf)(2) is reported, and the corresponding beta amino (beta-amino acid) alcohols were obtained in high yields in CH3CN as solvent. The reactions were carried out at room temperature and in the presence of only 1.25 mol% of ZrO(OTf)(2). This catalyst can be reused several times without loss of its activity.
Fe(III) substituted Wells–Dawson type polyoxometalate: An efficient catalyst for ring opening of epoxides with aromatic amines
作者:N. Aramesh、B. Yadollahi、V. Mirkhani
DOI:10.1016/j.inoche.2012.11.005
日期:2013.2
Abstract Various β -aminoalcohols were prepared by the ring opening reaction of epoxides with aromatic amines in the presence of Fe(III) substituted Wells–Dawson type polyoxometalate, α 2 -[(n-C 4 H 9 ) 4 N] 7 P 2 W 17 FeO 61 ·3H 2 O, as an efficient catalyst. The reaction was performed under neutral condition at room temperature and afforded the corresponding products in high to excellent yields.
摘要 在 Fe(III) 取代的 Wells-Dawson 型多金属氧酸盐 α 2 -[(nC 4 H 9 ) 4 N] 7 P 2 W 17 存在下,通过环氧化物与芳香胺的开环反应制备了各种 β-氨基醇。 FeO 61 ·3H 2 O,作为一种高效的催化剂。该反应在室温下中性条件下进行,并以高产率至极好的收率提供相应的产物。