412274-07-8Relevant academic research and scientific papers
Dioxirane Chemistry. Part 15. Rate studies on Epoxidations by Dimethyldioxirane
Murray, Robert W.,Shiang, Dawn L.
, p. 349 - 352 (1990)
The relative rates of epoxidation by dimethyldioxirane, (1), of a series of 4-substituted (E)-ethyl cinnamates have been studied.The data were treated with the Hammett linear free energy relationship and give ρ = - 1.53 indicating an electrophilic O-atom transfer.Second-order rate coefficients were determined for the epoxidation of (E)-ethyl cinnamate by (1) at several temperatures and the Arrhenius factors were determined, Ea = 14.1 kcal mol-1, log (A/s-1) = 7.41.
Four metalloporphyrinic frameworks as heterogeneous catalysts for selective oxidation and aldol reaction
Zou, Chao,Zhang, Tianfu,Xie, Ming-Hua,Yan, Lijun,Kong, Guo-Qiang,Yang, Xiu-Li,Ma, An,Wu, Chuan-De
, p. 3620 - 3626 (2013/05/09)
Four porous metalloporphyrinic framework materials, [(CH3) 2NH2][Zn2(HCOO)2(Mn III-TCPP)]·5DMF·2H2O (1; H6TCPP = tetrakis(4-carboxyphenyl)porphyrin), [(CH3)2NH 2][Cd2(HCOO)2(MnIII-TCPP)] ·5DMF·3H2O (2), [Zn2(HCOO)(Fe III(H2O)-TCPP)]·3DMF·H2O (3), and [Cd3(H2O)6(μ2-O)(Fe III-HTCPP)2]·5DMF (4) were synthesized by heating a mixture of MIIICl-H4TCPP (M = Mn and Fe) and M′ (M′ = Zn or Cd) nitrate in a mixed solvent of DMF and acetic acid. Compounds 1-3 are built up from M′2(COO)4 paddle-wheel subunits bridged by MIII-TCPP and formate ligands to form their 3D connections. The formate pillar heterogeneously connects with M and M′ cations in 1 and 2 and homogeneously joins M′ cations in 3. The μ2-O bridged FeIII-HTCPP dimer performs as a decadentate ligand to link 10 cadmium cations for the formation of an interesting 3D coordination network of 4. The four porphyrinic frameworks present interesting catalytic properties in the selective epoxidation of olefins, oxidation of cyclohexane, and intermolecular aldol reaction of aldehydes and ketones.
A facile Ph3P/CO2 mediated, one-pot synthesis of 2-oxazolidinones from 1, 2-azido alcohols via phosphazene and isocyanate intermediates
Madhusudhan,Reddy, M. Srinivasa,Reddy, Y. Narayana,Vijayalakshmi,Suribabu,Balraju
body text, p. 978 - 984 (2010/10/19)
A facile, efficient and convenient method has been developed for the one-pot synthesis of 2-oxazolidinones from the corresponding 1, 2-azido alcohols via phosphazene and isocyanate intermediates in presence of Ph 3P/CO2 in toluene.
Studies on synthesis and anti-bacterial activity of novel 4-substituted phenyl-2-oxo-1,3-oxazolidine-5-carboxylates
Madhusudha,Om Reddy,Ramatham,Dubey
, p. 957 - 963 (2007/10/03)
Regioselective opening of glycidic esters with sodium azide gives azido alcohols, which are converted to novel 4-substituted phenyl-2-oxo-1, 3-oxazolidine-5-carboxylates by various methods. These compounds are tested for in vitro anti-bacterial activity against Staphylococcus aureous, E. faecalis and E. faecium.
