1138337-58-2Relevant academic research and scientific papers
Gold(I)-Catalysed Cyclisation of Alkynoic Acids: Towards an Efficient and Eco-Friendly Synthesis of γ-, δ- and ?-Lactones
Gasperini, Danila,Maggi, Lorenzo,Dupuy, Stéphanie,Veenboer, Richard M. P.,Cordes, David B.,Slawin, Alexandra M. Z.,Nolan, Steven P.
supporting information, p. 3857 - 3862 (2016/12/16)
The improved synthesis of γ-, δ- and ?-lactones using a dinuclear N-heterocyclic carbene (NHC)-gold(I) catalyst is reported. This solvent-free process provides access to γ- and δ-lactones in high regio- and stereoselectivity. Reactions were performed at l
Cyclization of alkynoic acids with gold catalysts: a surprising dichotomy between AuI and AuIII
Harkat, Hassina,Dembelé, Albert Yénimégué,Weibel, Jean-Marc,Blanc, Aurélien,Pale, Patrick
experimental part, p. 1871 - 1879 (2009/06/28)
ω-Acetylenic acids, substituted or not at their acetylenic end, could be efficiently cyclized to γ- or δ-alkylidene lactones in the presence of AuCl and K2CO3. In contrast AuCl3 led to lactone dimers, probably through cycl
