149742-50-7Relevant articles and documents
Synthesis, growth and characterization of 4-bromo-4′-nitrobenzylidene aniline (BNBA): A novel nonlinear optical material with a (3+1)-dimensional incommensurately modulated structure
Subashini, Ashokkumar,Leela, Sundararaman,Ramamurthi, Kandasamy,Arakcheeva, Alla,Stoeckli-Evans, Helen,Petricek, Vaclav,Chapuis, Gervais,Pattison, Philip,Reji, Philip
, p. 2474 - 2481 (2013)
The organic nonlinear optical material of 4-bromo-4′-nitrobenzylidene aniline (BNBA, C13H9BrN2O2), a new derivative of benzylideneaniline family, was synthesized and purified by repeated recrystallization. Singl
Chemoselective Reduction of the P=O Bond in the Presence of P–O and P–N Bonds in Phosphonate and Phosphinate Derivatives
Sowa, Sylwia,Pietrusiewicz, K. Micha?
supporting information, p. 923 - 938 (2019/01/22)
Chemoselective reduction of the strong P=O bond in the presence of weaker P–O (ester) and P–N (amide) bonds in phosphonic acid derivatives has constituted an unresolved problem in organophosphorus chemistry for years. This long-standing problem is now solved for biologically relevant α-hydroxy and α-amino phosphonic as well as phosphinic acids esters and amides. The reduction of the P=O bond without concomitant scission of the ester and amide bonds is affected by use of BH3, a mild reducing agent, which affords the corresponding borane protected PIII phosphonite and phosphinite derivatives in one step. A mechanistic rationale is proposed for the role played by neighboring OH and NHR groups in facilitating the reduction, and for the observed chemo- and stereoselectivity. The reduction methodology described opens previously unavailable synthetic options in chemistry of α-functionalized phosphonic and phosphinic acids by offering a unique possibility for direct modifications of oxidation level of the P-center in these compounds.
Montmorillonite as a heterogeneous catalyst in the efficient, mild and one pot synthesis of Schiff bases under solvent-free conditions
Naeimi, Hossein,Rabiei, Khadijeh
experimental part, p. 208 - 212 (2012/07/03)
A mild and efficient method has been reported for preparation of Schiff base ligands through condensation reaction of various aromatic aldehydes and ketones with different aromatic amines in the presence of montmorillonite as a heterogeneous catalyst under solvent free conditions. The advantages of this friendly, economically, environmentally and mild method are such as; simplicity of the reaction procedure, reusability of catalyst, simple work-up, high product yields and very short reaction times.