X‐ray structurally characterized Mo (VI), Fe (III) and Cu (II) complexes of amide‐imine conjugate: (bio)catalytic and histidine recognition studies
作者:Sabyasachi Ta、Milan Ghosh、Noor Salam、Jayanta Das、Manirul Islam、Paula Brandão、Vítor Félix、Jesus Sanmartin、Debasis Das
DOI:10.1002/aoc.5823
日期:2020.10
nzohydrazide (H2LPTASAL), derived from 4‐methyl‐benzoicacid hydrazide (PTA) and 2‐hydroxybenzaldehyde is used to prepare Mo (VI), Cu (II) and Fe (III) complexes. The X‐ray structurally characterized complexes have been explored as catalyst for amine assisted asymmetric ring opening (ARO) of epoxide, carbon‐heteroatom cross‐coupling and ethyl benzene oxidation. In addition, their catecholase like activities
衍生自4-甲基苯甲酸酰肼(PTA)和2的酰胺-亚胺共轭物(E)-N'-((2-羟基苯甲酰基-1-基)亚甲基)-4-甲基苯甲酰肼(H 2 L PTASAL) ‐羟基苯甲醛用于制备Mo(VI),Cu(II)和Fe(III)配合物。X射线的结构表征的配合物已被用作催化剂,用于胺辅助的环氧不对称开环(ARO),碳杂原子交叉偶联和乙苯氧化。另外,已经充分研究了它们的儿茶酚酶样活性。而且,Cu(II)配合物通过荧光光谱法选择性地识别组氨酸。
Zr(DS)<sub>4</sub> as an Efficient Catalyst for the Aminolysis of Epoxides in Water
Zirconium dodecyl sulfate [Zr(DS) 4 ] is an efficientcatalyst for the aminolysis of epoxides in water at pH 5.0. Epoxides and anilines were used and the corresponding β-amino alcohols were isolated in generally high regioselectivity and excellent yields.
A magnetic nanoparticle-catalyzed regioselectivering opening of epoxides by aromatic amines
作者:Najmedin Azizi、Parisa Kamrani、Mostafa Saadat
DOI:10.1002/aoc.3450
日期:2016.6
Sulfonicacid‐functionalized silica‐coated magnetic Fe3O4 nanoparticles were synthesized and applied as a green catalyst for an efficient and environmentally friendly ring opening of epoxides with aromatic amines in good to excellent yields with high chemoselectivity. Clean aminolysis of various aliphatic and aromatic epoxides in ethanol generates β‐hydroxyamines undermild reaction conditions. The
Highly efficient ring opening reactions of epoxides with deactivated aromatic amines catalyzed by heteropoly acids in water
作者:Najmedin Azizi、Mohammad R. Saidi
DOI:10.1016/j.tet.2006.11.045
日期:2007.1
Heteropoly acid was found to be an effective and efficient catalyst for the ring opening reaction of epoxides with various aromatic amines to produce the corresponding β-amino alcohols in moderate to excellent yields in water. This method provides a new and efficient protocol in terms of mild reaction conditions, clean reaction profiles, small quantity of catalyst, and simple work-up procedure.
Catalytic synthesis of organic cyclic carbonate through CO2 fixation and production of β-amino alcohol via ring opening of epoxides under green condition by polystyrene embedded Al(III) catalyst
作者:Surajit Biswas、Dipanwita Roy、Swarbhanu Ghosh、Sk Manirul Islam
DOI:10.1016/j.jorganchem.2019.120877
日期:2019.10
for the production of fine organic chemicals such as organic cyclic carbonates and 2-amino alcohols under green and mild reaction conditions. Organic cyclic carbonates were synthesized through the insertion of carbon dioxide into epoxides at room temperature under solvent freecondition. The developed protocol of catalytic synthesis of cyclic carbonates is sustainable, eco-friendly and cost-effective