Synthesis of carbocycles by enone-selective reduction using organoiodotin hydride
作者:Toshihiro Suwa、Keita Nishino、Masato Miyatake、Ikuya Shibata、Akio Baba
DOI:10.1016/s0040-4039(00)00388-9
日期:2000.4
By using di-n-butyliodotin hydride (n-Bu2SnIH), carbocycles were prepared from substrates bearing both enone and formyl moieties, where the enone-selective reduction was followed by a diastereoselective intramolecular aldol reaction.
Enantioselective Copper-Catalyzed Reductive Michael Cyclizations
作者:Claire L. Oswald、Justine A. Peterson、Hon Wai Lam
DOI:10.1021/ol901560r
日期:2009.10.15
In the presence of siloxanes as stoichiometric reductants, chiral copper-bisphosphine complexes catalyze highly enantioselective reductive Michael cyclizations of substrates containing two alpha,beta-unsaturated carbonyl moieties. The diastereochemical outcome of these reactions is dependent upon whether biaryl- or ferrocene-based chiral bisphosphines are employed.