Smaller, faster, better: modular synthesis of unsymmetrical ammonium salt-tagged NHC–gold(<scp>i</scp>) complexes and their application as recyclable catalysts in water
作者:Katrin Belger、Norbert Krause
DOI:10.1039/c5ob01286d
日期:——
Facile access towards a small library of unsymmetrical ammonium salt-tagged N-heterocyclic carbene gold(I) complexes is described, and their application as recyclable catalysts in cyclization reactions of acetylenic carboxylic acids and amides to lactones and lactams, respectively, in aqueous media is demonstrated. Catalyst 1ab was applied in the synthesis of 2-epi-clausemarine A (16).
Neurotrophic and antiproliferative compounds related to the antiepileptic drug valproate are provided. These compounds are useful for promoting neuronal function as in neurodegenerative disorders and for treating neoplastic disease.