Zinc metal–organic frameworks: efficient catalysts for the diastereoselective Henry reaction and transesterification
作者:Anirban Karmakar、M. Fátima C. Guedes da Silva、Armando J. L. Pombeiro
DOI:10.1039/c4dt00219a
日期:——
Three new amidoterephthalate ligands are utilized to synthesize three new zinc(ii) metal–organic frameworks which act as heterogeneous catalysts for the diastereoselective nitroaldol (Henry) and transesterification reactions.
Synthesis of Metallomacrocycle and Coordination Polymers with Pyridine-Based Amidocarboxylate Ligands and Their Catalytic Activities towards the Henry and Knoevenagel Reactions
作者:Anirban Karmakar、Guilherme M. D. M. Rúbio、M. Fátima C. Guedes da Silva、Armando J. L. Pombeiro
DOI:10.1002/open.201800170
日期:2018.11
(H2L) with zinc(II), cadmium(II), and samarium(III) nitrates were studied, and the obtained compounds, [Zn(1κO:2κO′‐L)(H2O)2]n (1), [Cd(1κO2:2κO2‐L)(H2O)2]2⋅6n H2O⋅ n C4H8O2⋅1.5n DMF (2), and [Sm(1κO:2κO′O′′:3κO′′′‐L)(NO3)(H2O)(dmf)]n⋅n DMF (3), were characterized by elemental analysis, FTIR spectroscopy, thermogravimetric analysis, and X‐ray single‐crystal diffraction. Compounds 1 and 3 have 1D zigzag‐
研究了3,3'-(吡啶-2,6-二羰基)双(氮杂二基)}二苯甲酸 (H 2 L) 与硝酸锌 (II)、硝酸镉 (II) 和硝酸钐 (III) 的反应,以及所得化合物[Zn(1κ O :2κ O′ ‐L)(H 2 O) 2 ] n ( 1 ), [Cd(1κ O 2 :2κ O 2 ‐L)(H 2 O) 2 ] 2 ⋅ 6 n H 2 O ⋅ n C 4 H 8 O 2 ⋅ 1.5 n DMF ( 2 ), 和 [Sm(1κ O :2κO ′ O ′′ :3κ O′′′ ‐L)(NO 3 )(H 2 O)(DMF)] n ⋅ n DMF ( 3 ),通过元素分析、FTIR 光谱、热重分析和 X 射线单晶衍射进行表征。化合物1和3分别具有一维锯齿形和双链型结构,而2则具有双核金属大环配合物。配体(L 2− )以不同的构象取向,即1为syn-syn,2和3为anti-anti。化合物1
Amide functionalized metal–organic frameworks for diastereoselective nitroaldol (Henry) reaction in aqueous medium
作者:Anup Paul、Anirban Karmakar、M. Fátima C. Guedes da Silva、Armando J. L. Pombeiro
DOI:10.1039/c5ra14637b
日期:——
The metal–organic frameworks [Zn2(L)2(1,4-BDC)]n·2n(DMF) (L = 4-(pyridin-4-ylcarbamoyl)benzoate; BDC = benzenedicarboxylate) and [Cu(L)2]n·4n(DMF)·n(H2O) work as catalysts for the diastereoselective nitroaldol reaction in aqueous medium.
Zinc amidoisophthalate complexes and their catalytic application in the diastereoselective Henry reaction
作者:Anirban Karmakar、M. Fátima C. Guedes da Silva、Susanta Hazra、Armando J. L. Pombeiro
DOI:10.1039/c4nj02371d
日期:——
5-Propionamidoisophthalic acid and 5-benzamidoisophthalic acid are used to synthesize new zinc(ii) complexes which act as heterogeneous catalysts for the diastereoselective nitroaldol (Henry) reaction.
Metal–Organic Frameworks with Pyridyl-Based Isophthalic Acid and Their Catalytic Applications in Microwave Assisted Peroxidative Oxidation of Alcohols and Henry Reaction
作者:Anirban Karmakar、Luísa M. D. R. S. Martins、Susanta Hazra、M. Fátima C. Guedes da Silva、Armando J. L. Pombeiro
DOI:10.1021/acs.cgd.5b01178
日期:2016.4.6
building unit. These frameworks act as heterogeneous polymeric solid catalysts (the most effective one being the copper MOF 1) for solvent-free microwave assisted peroxidative oxidation of primary and secondary alcohols. They also effectively catalyze the nitroaldol (Henry) reaction of different aldehydes with nitroalkanes in water. These MOF-based heterogeneouscatalysts can be easily recovered and reused