868388-66-3Relevant academic research and scientific papers
Silver oxide(I) promoted Conia-ene/radical cyclization for a straightforward access to furan derivatives
Ardisson, Janick,Lannou, Marie-Isabelle,Mohamed, Selkti,Sorin, Geoffroy,Yu, Bao
, p. 1374 - 1377 (2022/02/11)
A novel access to fused furan cores using silver oxide(I) has been developed. Mechanistic investigations indicate the involvement of a Conia-ene reaction/radical cyclization for an expedient path to complex furan derivatives. The reaction is broad in scop
Combination iminium, enamine and copper(i) cascade catalysis: A carboannulation for the synthesis of cyclopentenes
Yang, Ting,Ferrali, Alessandro,Campbell, Leonie,Dixon, Darren J.
body text, p. 2923 - 2925 (2009/02/03)
A one-pot, multistep reaction cascade to cyclopentenes from α,β-unsaturated ketones and propargylated carbon acids through a combination of organocatalysis and transition metal ion catalysis is reported; the reaction cascade is simple to perform, occurs u
Gold-catalyzed 5- and 6-exo-dig selective cyclizations of alkynyl silyl enol ethers: Efficient method for [3 + 2] and [4+2] annulations onto α,β-enones
Lee, Kooyeon,Lee, Phil Ho
, p. 2092 - 2096 (2008/09/18)
An efficient method for the annulation of five- and six-membered rings onto α,β-enones is described via gold-catalyzed 5- and 6-exo-dig selective cyclizations of alkynyl silyl enol ethers.
Thiophenol-mediated 1,5-hydrogen atom abstraction: Easy access to mono- and bicyclic compounds
Beaufils, Florent,Denes, Fabrice,Becattini, Barbara,Renaud, Philippe,Schenk, Kurt
, p. 1587 - 1594 (2007/10/03)
A thiophenol-mediated method for cyclization of alkynes is described. The reaction cascade involves the intermolecular addition of a phenylthiyl radical to a terminal triple bond generating an alkenyl radical, followed by a 1,5-hydrogen atom transfer and a 5-exo-trig radical cyclization. This very efficient tin-free procedure allows one to prepare highly functionalized cyclopentane derivatives as well as fused bicyclic and spirocyclic compounds from easily available precursors. During this cyclization process, a phenylthio moiety is incorporated into the final cyclized products. This functionalization is particularly attractive for further transformation of the products.
Dimethyl phosphite mediated hydrogen atom abstraction: A tin-free procedure for the preparation of cyclopentane derivatives
Beaufils, Florent,Denes, Fabrice,Renaud, Philippe
, p. 5273 - 5275 (2007/10/03)
(Chemical Equation Presented) A radical transformation! An efficient radical cascade reaction leads to functionalized five-membered rings. Alkenyl radicals are generated from readily available terminal alkynes and a dialkyl phosphite. This tin-free proced
