Facile Reaction ofTe-Aryl Benzenecarbotelluroates, ArCOTeAr′, with Methyl Iodide and Halogens

Triphenylphosphine Catalysed Facile Multicomponent Synthesis of 2-Amino-3-Cyano-6-Methyl-4-Aryl-4H-Pyrans

Triphenyl phosphine(PPh3), an efficient and reusable catalyst, catalysed the synthesis of 2-amino-3-cyano-6-methyl-4-aryl-4H-pyran-5-ethylcarboxylate derivatives by one-pot condensation of aromatic aldehydes, malononitrile and ethyl acetoacetate in EtOH-H2O (1:1) at reflux conditions. The results show that ...

The chemistry of methyl iodide on Mo(100): formation and reaction of adsorbed methyl species

The adsorption of methyl iodide is studled on Mo (100) where ultraviolet photoelectron spectroscopy shows that the methyl lo&de thermally decomposes to form methyl species on warming to ~200 K This self-hydrogenates to yMd methane which desorbs at ~230 K and predosmg the surface with deuterium forms essentially only CH3D lndxcatmg that the methyl species reacts with adsorbed hydrogen and that t...

Labeling of alprenolol with fluorescent aryl iodide as a reagent based on Mizoroki-Heck coupling reaction.

A novel fluorescent labeling method for alprenolol was developed based on Mizoroki-Heck coupling reaction. We designed and synthesized fluorescent aryl iodide, 4-(4,5-diphenyl-1H-imidazol-2-yl)iodobenzene (DIBI) as a labeling reagent. DIBI has a lophine skeleton carrying an iodide atom acting as fluorophore and reactive center, respectively. In order to evaluate the usefulness of DIBI, a high-p...

Methyl iodide poisoning.

triphenylphosphine catalysed facile multicomponent synthesis of 2-amino-3-cyano-6-methyl-4-aryl-4h-pyrans

triphenyl phosphine(pph3), an efficient and reusable catalyst, catalysed the synthesis of 2-amino-3-cyano-6-methyl-4-aryl-4h-pyran-5-ethylcarboxylate derivatives by one-pot condensation of aromatic aldehydes, malononitrile and ethyl acetoacetate in etoh-h2o (1:1) at reflux conditions. the results show that aromatic aldehydes containing electron-donating groups or electron-withdrawing groups cou...