Tricarbamate of 1,3,5‐Triaminobenzene via Curtius Rearrangement of Trimesic Acid and Subsequent Nitration
摘要:
The triethyl tricarbamate of 1,3,5-triaminobenzene was prepared from trimesic acid in five steps with 70% overall yield. The tricarbamate underwent nitration to give the mono-, di-, or trinitro analogs in excellent yield.
Trinuclear cis–[MoVIO2] complexes catalyzed efficient synthesis of 3,4-dihydropyrimidin-2(1H)-one based biomolecules via one-pot-three-components Biginelli reaction under solvent-free condition
作者:Mannar R. Maurya、Devesh Singh、Reshu Tomar、Puneet Gupta
DOI:10.1016/j.ica.2021.120750
日期:2022.3
three-components [alkyl acetoacetate, benzaldehyde (or its derivatives) and urea] synthesis of biologically active 3,4-dihydropyrimidine (DHMP) based molecules via Biginelli reaction under mild and solventfreeconditions in the presence of H2O2, a green oxidant. Density functional theory computations were performed to provide a suitable reaction pathway for this catalytic reaction which was further supported
三室配体tris(H 2 ONO) [H 6 L 1-3 ( I – III )] 具有C 3对称性,由苯-1,3,5-三碳酰肼和3-乙酰-2-羟基-缩合获得6-methyl-4H-pyran-4-one ( I ), 3-acetyl-4-hydroxy-2H-chromene-2-one ( II ) 和 3-hydroxy-5-(hydroxymethyl)-2-methylpyridine-4-甲醛 ( III )在回流的甲醇中与 [Mo VI O 2 (acac) 2 ] 反应生成三-顺式-[MoO 2 ] 2+ } 配合物 [Mo VI O 2(H 2 O)} 3 L 1 ] ( 1 )、[Mo VI O 2 (H 2 O) 3 }L 2 ] ( 2 ) 和 [Mo VI O 2 (H 2 O) 3 }L 3 ] ( 3 ),分别。这些配体和配合物通过元素分析、FT-IR、UV/Vis、NMR(1
A new and direct synthesis of 1-acylamino-2,6-diaryl pyridinium salts
作者:François Rivière、Vadim Romanenko、Marie-Rose Mazières、Michel Sanchez、Jean-Gérard Wolf
DOI:10.1016/s0040-4039(98)00913-7
日期:1998.7
5-diaryl-2,4 pentadienylidene) N′-(acyl) hydrazinium salts 2. The synthesis of di- and tri-pyridinio substituted polycarboxamides 3e-g demonstrate the validity of the method. The kinetics of the process indicate that the limiting rate of the reaction is the all trans - all cis interconversion of 2. A single crystal determination confirm the structure of 3b.
Trinuclear cis-dioxidomolybdenum(VI) complexes of compartmental C symmetric ligands: Synthesis, characterization, DFT study and catalytic application for hydropyridines (Hps) via the Hantzsch reaction
作者:Mannar R. Maurya、Reshu Tomar、Puneet Gupta、Fernando Avecilla
DOI:10.1016/j.poly.2020.114617
日期:2020.8
electrochemical study, elemental analysis, thermogravimetric study and single crystal X-ray diffraction of the ligand III and complexes 1 and 5. In the presence of H2O2 as an oxidant, these complexes show excellent catalytic potential towards the one-pot three-components [ethylacetoacetate, benzaldehyde (or its derivatives) and ammonium acetate] dynamic covalent assembly in the Hantzsch reaction. Under solvent
Conjugatedporouspolymers were successfully synthesized through dynamic covalent condensation polymerizationusing aromatic anhydrides and triacylhydrazine benzene. The obtained conjugatedpolymers with unique chemical stability, high specific surface area and electrochemically active carbonyl functional groups exhibited excellent performance as cathode materials for lithium-ion batteries.