N‐polyazolylmethanes. 1. Synthesis and nmr study of N,N′‐diazolylmethanes

Abstract

Thirteen N,N‐diazolylmethanes, including derivatives of pyrazole, imidazole, 1,2,4‐triazole, benzimidazole and indazole were prepared by reaction of azoles with methylene chloride under phase transfer catalysis conditions. The relative amounts of isomeric mixtures obtained with ‘asymmetric’ azoles or with equimolar mixtures of azoles are compared with literature results on monoalkylation of azoles. Proton and carbon‐13 nmr spectra of the N,N'‐diazolylmethanes are discussed.

Polymer-Supported Carbene Complexes of Palladium: Well-Defined, Air-Stable, Recyclable Catalysts for the Heck Reaction

“…N,N'-Diimidazolylmethane was prepared according to literature procedures. [24] 4-(Bromomethyl)phenoxymethyl polystyrene (Wang Resin) was obtained from Novabiochem as a 1.00 mmol g À1 substitution loading. Other chemicals were obtained from Aldrich and used as received.…”

Metal Complex Derivatives of Azole: a Study on Their Synthesis, Characterization, and Antibacterial and Antifungal Activities

“…The synthesis of (3) was performed according to the method described by Juliá et al 33 with some modifications. We found that the synthesis was better when the mixture reaction was initiated with the triazol salt.…”

Construction of a Novel 2D Polymer [Co(dmpzm)(dca)2]∞ from Reaction of a Mononuclear Complex [Co(dmpzm)Cl2] with Sodium Dicyanamide (dca) [dmpzm=bis(3,5‐dimethylpyrazolyl)methane]

“…17 Other chemicals and reagents were obtained from commercial sources and used as received. All solvents were pre-dried over activated molecular sieves and refluxed over the appropriate drying agents under argon.…”