109059-10-1Relevant articles and documents
Cobalt(II)-catalyzed electrophilic alkynylation of 1,3-dicarbonyl compounds to form polysubstituted furans via π-π Activation
Roslan, Irwan Iskandar,Sun, Jiulong,Chuah, Gaik-Khuan,Jaenicke, Stephan
, p. 719 - 726 (2015)
Polysubstituted furans were obtained with excellent yields via the electrophilic alkynylation of 1,3-dicarbonyl compoundsws with phenyl- or ester-substituted brominated alkynes. The reaction is catalyzed by the inexpensive and readily available catalyst, cobalt(II) chloride, and has a wide substrate scope. The C(sp)-C(sp3) coupling occurs under mild conditions with short reaction times and does not require an inert atmosphere or ligands. It is proposed that the reaction proceeds through a chelation complex of cobalt(II) with the deprotonated 1,3-dicarbonyl compound.
The α-Alk-1-ynylation of β-Dicarbonyl Compounds and Nitronate Salts by Alk-1-ynyl-lead Triacetates
Moloney, Mark G.,Pinhey, John T.,Roche, Eric G.
, p. 333 - 341 (2007/10/02)
Di(alk-1-ynyl)mercury compounds and alk-1-ynyltrimethylstannanes have been shown to react with lead tetra-acetate to give alk-1-ynyl-lead triacetates,unstable intermediates which may be used for the C-alkynylation of β-dicarbonyl compounds and the salts o
