27383-59-1Relevant articles and documents
Triphenylphosphine-mediated synthesis of the E/Z isomers of methyl 6-(1,2-di(methoxycarbonyl))-8-(ethyl carbamoylformyl)-2-oxo-2H-chromene-4- carboxylate
Yavari, Issa,Feiz-Javadian, Fakhrossadat
, p. 1011 - 1016 (2006)
Triphenylphosphine-mediated reaction of dimethyl acetylenedicarboxylate with ethyl (2-hydroxyphenylcarbamoyl)formate in boiling toluene produces a mixture of methyl 8-(ethyl carbamylformyl)-2-oxo-2H-chromene-4-carboxylate and the E/Z isomers of methyl 6-(
A Bis-Polydentate Oxamate-Based Achiral Ligand That Can Stabilize a Macrocyclic Mixed Valence Compound or Induce a 1D Helical Chain
Li, Ang,Li, Yanling,Chamoreau, Lise-Marie,Desmarets, Christophe,Lisnard, Laurent,Journaux, Yves
, p. 3311 - 3319 (2020)
The reaction of the N-(2-hydroxyphenyl)oxamate ligand (ohpma) has been investigated with cobalt(II) and copper(II) ions. It has led to two coordination compounds, (TMA)3[{CoIII(ohpma)2CoII(MeOH)2}sub
A new method for the preparation of unsymmetrical 1,4-substituted piperazine derivatives
Ortiz, Aurelio,Farfan, Norberto,Hoepfl, Herbert,Santillan, Rosa,Ochoa, Maria E.,Gutierrez, Atilano
, p. 799 - 811 (2007/10/03)
Symmetrical and unsymmetrical N,N'-piperazine derivatives of (-)- norephedrine and o-aminophenol were synthesized stereoselectively in yields >70% by reduction of the corresponding N,N'-ethylenebisoxazolidine heterocycles. The stereochemistry at the ring fusion carbons was established by NMR spectroscopy and X-ray crystallography.