904-70-1

Upstream product

• 623-27-8 terephthalaldehyde, 
• 106-47-8 4-chloro-aniline 

Downstream Products

• 115528-58-0 trans-[PdCl₂(NH₂PhCl)2] 
• 1231760-71-6 ((IrCl((CH₃)5C₅))N(C₆H₄Cl)CH)2(C₆H₂) 
• 6201-69-0 2,5-bis(4'-chloroanilino)-3,6-dichloro-1,4-benzoquinone 
• 120286-66-0 5,14,29,38-tetrakis(4-chlorophenyl)tetraimidazolo<3⁴>paracyclophane 
• 120286-64-8 1,4-bis<1-(4-chlorophenyl)-4-methyl-imidazolyl>benzene 

Relevant academic research and scientific papers

Exploration of imidazole and imidazopyridine dimers as anticancer agents: Design, synthesis, and structure–activity relationship study

Dimerization of proteins/receptors plays a critical role in various cellular processes, including cell proliferation and differentiation. Therefore, targeting such dimeric proteins/receptors by dimeric small molecules could be a potential therapeutic appr

An extending evidence of molecular conformation on spectroscopic properties of symmetrical bis-Schiff bases

The relationship between the molecular conformation and spectroscopic properties of symmetrical bis-Schiff bases, was explored experimentally. The synthesis, crystal structures, and spectroscopic behaviors of symmetrical bis-Schiff bases derived from 1,4-

Pd(II) catalyzed transformation of Schiff bases in complexes of the type trans-[PdCl2(NH2Ar-X)2] (X = H, CH3, Cl): Reactivity with aldehydes and Heck coupling reaction

Schiff bases of type (R-Ph-N=CH-Ph-CH=N-Ph-R), where, R = H (L 1), CH3 (L2) and Cl (L3), in presence of cis-[Pd(en)Cl2] or [Pd(DMSO)2Cl2] (en = 1,2-diaminoethane, DMSO = dimethylsulphoxide) give trans-[PdCl 2(NH2Ph)2] (1), trans-[PdCl2(NH 2PhCH3)2] (2) and trans-[PdCl 2(NH2PhCl)2] (3). The complexes are characterized using spectroscopic (IR, UV-vis and NMR) and X-diffraction techniques. The H-bonding interaction generates multinuclear supramolecular structure in complex (2) and (3). Complex (1) on reaction with benzaldehyde, salicylaldehyde and 4-carboxybenzaldehyde yields complexes of the type [PdCl2(PhN=CHPh)2] (4), [Pd(PhN=CHPhO)2] (5) and [PdCl2(PhN=CHPhCOOH)2] (6) respectively. The structures have been optimized using density functional theory at B3LYP level. Heck coupling reactions of bromobenzene with acrylonitrile and bromobenzene with ethyl acrylate in the presence of complexes (1), (2) and (3) have been carried out separately.

Bis-imine-cyclometalated macrocycles: Synthesis, characterization and observation of solution behaviour

A novel class of cyclometalated macrocycles [(Cp*Ir) 2(R-NC-C6H2-CN-R)2] 2(pyrazine)2·(OTf)4 [R = Ph (4a), p-MeOC6H4 (4b), p-MeC6H4 (4c), p-ClC6H4 (4d), Me (4e)]; [(Cp*Rh) 2(R-NC-C6H2-CN-R)2] 2(pyrazine)2·(OTf)4 [R = Ph (4a′), p-MeOC6H4 (4b′), p-MeC6H4 (4c′)] and [(Cp*Ir)2(R-CN-C6H 4-NC-R)2]2(pyrazine)2·(OTf) 4 [R = Ph (5a), p-MeOC6H4 (5b)] was stepwise constructed through the double-site C-H activation of aromatic bis-imine substrates. The structures of binuclear complexes and tetranuclear macrocycles were confirmed by single-crystal X-ray diffraction. Isomers were found both in binuclear species and macrocyclic complexes. Flexible substrates led to the existence of isomers for binuclear species, yet gave no isomers after macrocyclic constructions; rigid ones, in contrast, led to isomers only for macrocyclic species. The isomers of tetranuclear macrocycles were thermodynamically stable to reversible transformation on a scale of days. Robust bonding and a certain degree of rigidity were invoked to explain the existence of isomers. This is the first example, to our knowledge, in which coordinated macrocycles containing half-sandwich Cp*M (M = Ir, Rh) fragments have been constructed, without a dynamic reversible process.

Novel Reaction between 3,4,5,6-Tetrachloro-1,2-benzoquinone and Bis-azomethines

3,4,5,6-Tetrachloro-1,2-benzoquinone (o-CHL) reacted with N,N1-dicyclohexyl-1,2-ethanediimine 1a to give a transient condensation product, which underwent [4 + 2]cycloaddition reaction with another molecule of 1a. In a different manner, utilizi

ELECTRONIC ABSORPTION SPECTRA OF AROMATIC SCHIFF BASES. PART II. TEREPHTHALDEHYDE DERIVATIVES

The effect of para substituents in the aniline moiety of terephthalidene-di(p-R-anilines) on their UV-VIS spectra has been studied.A linear relationship has been found between position of long-wavelength absorption bands of terephthalidene-dianilines with