34948-39-5Relevant academic research and scientific papers
Complete and Versatile Post-Synthetic Modification on Iron-Triazole Spin Crossover Complexes: A Relevant Material Elaboration Method
Enríquez-Cabrera, Alejandro,Ridier, Karl,Salmon, Lionel,Routaboul, Lucie,Bousseksou, Azzedine
supporting information, p. 2000 - 2016 (2021/05/17)
In this paper we study the post-synthetic modification (PSM) reaction on solid spin crossover (SCO) [Fe(NH2trz)3]X2 (X=NO3, OTs, Cl, SO4, BF4) complexes with different substrates. The wide access to a diversity of functionalized complexes with imine, amide and carbamide groups from the same amino parent compound demonstrates the synthetic approach value of this method. The as-obtained post-synthetic complexes were studied by IR, solid NMR, elemental analyses, and powder X-ray diffraction, and compared to the corresponding compounds obtained by direct synthesis (DS) routes. Moreover, after digestion of the complexes obtained by PSM reactions, the free ligands were characterized by NMR in solution, which allowed us to indirectly confirm the formation of complexes we wished to synthesize. The study reveals in numerous cases that a complete post-synthetic modification is possible despite the structural cohesion that is established between the 1D coordination chains within these materials. Spin crossover properties of some complexes obtained by both methods are also reported and compared.
REACTION OF SCHIFF BASES OBTAINED FROM 4-AMINOANTIPYRINE AND 4-AMINO-1,2,4-TRIAZOLE WITH KETONES
Letunov, V. I.
, p. 145 - 149 (2007/10/02)
With acetophenone and p-nitroacetophenone in alcohol and benzene media in the presence of acid N-arylidene-4-aminoantipyrines form α,β-unsaturated ketones, and with antipyrine the form aryldiantipyrylmethanes.With the same ketones N-arylidene-4-amino-1,2,4-triazoles form the products from addition at the azomethine bond.In both cases reaction with benzylideneacetone was not detected.
