27978-93-4

Upstream product

• 167558-65-8 5-nitro-N-benzylidene-1,2-phenylenediamine 
• 100-52-7 benzaldehyde 
• 99-56-9 4-Nitrophenylene-1,2-diamine 

Downstream Products

• 1381963-52-5 CHO₃^(1-)*C₁₃H₁₃N₃O₂*C₁₆H₃₆N⁽¹⁺⁾ 
• 1402928-79-3 C₁₃H₁₃N₃O₂*H₂O₄P^(1-)*C₁₆H₃₆N⁽¹⁺⁾*H₂O 

Relevant academic research and scientific papers

Selectivity control during the solid supported protic acids catalysed synthesis of 1,2-disubstituted benzimidazoles and mechanistic insight to rationalize selectivity

Selectivity control during the formation of 1,2-disubstituted benzimidazoles has been achieved for the reaction of o-phenylenediamine with aldehydes in the presence of solid supported protic acids as catalysts and choosing an appropriate reaction medium. Perchloric acid adsorbed on silica-gel (HClO4-SiO2) was found to be the most effective catalyst system for the synthesis of 1,2-disubstituted benzimidazoles in EtOH at rt. Apart from the catalyst and solvent, the electronic and steric factors of the aldehyde and the electronic factor of the o-phenylenediamine are also significant contributory factors in dictating the selectivity. An understanding of the mechanistic course of the formation of the 1,2-disubstituted benzimidazoles has been outlined that would rationalise the origin of selectivity control under the set experimental parameters. The Royal Society of Chemistry.

Reusable amine-based structural motifs for green house gas (CO2) fixation

A series of compounds with an amine based structural motif (ASM) have been synthesized for efficient atmospheric CO2 fixation. The H-bonded ASM-bicarbonate complexes were formed with an in situ generated HCO 3- ion. The complexes have been characterized by IR, 13C NMR, and X-ray single-crystal structural analysis. ASM-bicarbonate salts have been converted to pure ASMs in quantitative yield under mild conditions for recycling processes.

Reduced Schiff-base assisted novel dihydrogenphosphate-water polymer

Reduced Schiff bases with a common p-nitro-o-phenylenediamine moiety have been synthesised and their structures have been characterized by single-crystal structural analysis. Schiff bases having self-complementary H-bond donors and H-bond acceptors can form a scissors like structure through intermolecular H-bonding interaction. Reduced Schiff bases interact with biologically important dihydrogenphosphate ion and form stable complexes. Furthermore, dihydrogenphosphate and water form an unprecedented self-assembled dihydrogenphosphate-water [H2PO4·H 2O]nn- 1D supramolecular polymer upon complexation with reduced Schiff bases.