Thallium in organic synthesis. 60. 2,6-Diaryl-3,7-dioxabicyclo[3.3.0]octane-4,8-dione lignans by oxidative dimerization of 4-alkoxycinnamic acids with thallium(III) trifluoroacetate or cobalt(III) trifluoride
Electochemical asymmetric dimerization of cinnamic acid derivatives and application to the enantioselective syntheses of furofuran lignans
作者:Naoki Mori、Akiko Furuta、Hidenori Watanabe
DOI:10.1016/j.tet.2016.10.058
日期:2016.12
A new electrochemical method for the asymmetric oxidative dimerization of cinnamic acidderivatives has been developed. This method enabled the enantioselective syntheses of furofuran lignans, yangambin, sesamin and eudesmin.
Chemistry of 2,5-bis(trimethylsiloxy)furans. II: Reactions with carbonyl compounds and the synthesis of 2,6-diaryl-3,7-dioxabicyclo[3.3.0]octane-4,8-diones
作者:Peter Brownbridge、Tak-Hang Chan
DOI:10.1016/s0040-4039(00)78706-5
日期:——
2,5-Bis(trimethylsiloxy)furan reacted with a number of substituted benzaldehydes under activation of titanium tetrachloride to give 2,6-diaryl- 3,7-dioxabicyclo[3.3.0]octane-4,8-diones.