74378-55-5Relevant academic research and scientific papers
Synthesis of 3-alkylamino-3-(2-hydroxyaryl)-1-polyfluoroalkylprop-2-en-1- ones and 2-polyfluoroalkyl-4H-chromen-4-imines
Sosnovskikh,Usachev
, p. 383 - 392 (2007/10/03)
Condensation of Schiff's bases (prepared from 2-hydroxy- or 2-hydroxy-5-methylacetophenones and primary amines) with ethyl polyfluoroalkanoates in the presence of LiH in THF affords 3-alkylamino-3-(2- hydroxyaryl)-1-polyfluoroalkylprop-2-en-1-ones, which
Ready N-alkylation of enantiopure aminophenols: Synthesis of tertiary aminophenols
Cimarelli, Cristina,Palmieri, Gianni,Volpini, Emanuela
, p. 6089 - 6096 (2007/10/03)
A regioselective indirect alkylation of aminophenols to enantiopure tertiary aminophenols, which are useful chiral ligands for metal-catalysed asymmetric reactions, is reported. This very simple synthetic methodology, through reduction or alkylation of an intermediate benzoxazine, was performed in mild conditions, suitable for the conservation of the configuration of the stereogenic centres. Some crystalline aminophenols show the phenomenon of 'crystallization-induced asymmetric transformation'.
Acylation of o-imidoylphenol lithium dianions: Synthesis of 4H-chromen- 4-ylidenamines
Cimarelli, Cristina,Palmieri, Gianni
, p. 475 - 478 (2007/10/03)
A method is described to obtain 4H-chromen-4-ylidenamines 4, through the reaction of o-imidoyl phenol dianions 2' with aromatic esters and subsequent acid cyclisation of the 3-(2-hydroxyphenyl)-3-(amino)-1-phenylprop-2-en-1- ones 3 obtained. (C) 2000 Else
Boron Complexes of Monofunctional Bidentate and Bifunctional Tridentate Shiff Bases
Singh, H. B.,Tandon, J. P.
, p. 836 - 839 (2007/10/02)
Boron Schiff base complexes of the type (AcO)2B(SB) and (AcO)2B(SBH) have been synt
Syntheses d'aminoalcools-1,3 ou d'aminophenols-1,3 par reduction d'enaminones ou d'iminophenols par les hydrures metalliques. Etude structurale par infrarouge et RMN des aminoalcools-1,3 bisecondaires diastereomeres
Maroni, Pierre,Cazaux, Louis,Tisnes, Pierre,Zambeti,Marianthie
, p. 179 - 186 (2007/10/02)
Enaminones, obtained by reaction of a primary amine with a β-diketone, can take three tautomeric forms: keto-enamine Ia, keto-imine Ib and imino-enol Ic.In general the keto-enamine form Ia is the most stable.Thi
