نتایج جستجو برای: n heterocyclic

تعداد نتایج: 981942  

Journal: :Brazilian Journal of Medical and Biological Research 2003

Journal: :Organic polymer material research 2022

The biobased renewable monomer 2,5-diformylfuran is polymerised using various N-heterocyclic carbene (NHC) catalysts in dimethyl sulfoxide (DMSO) affording a low molar mass polymer. It shown that catalyst structure as well the temperature and time polymerization running have noticeable effect on its mass. obtained material characterized by nuclear magnetic resonance (NMR), thermogravimetric ana...

2014
Ines Primožič Tomica Hrenar Krešimir Baumann Lucija Krišto Ivana Križić

New mechanochemical pathways for the transformation of six N-heterocyclic carbonyl compounds into oximes using hydroxylamine hydrochloride were explored. Reactions were performed first without any base since the heterocyclic moieties (imidazole, benzimidazole, pyridine and quinuclidine) have an intrinsic basic nitrogen atom. This green, solvent free method was suitable for all compounds (up to ...

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