CARBOMETALLATION OF ALKYNES AND IMPROVED SYNTHESIS OF UNIQUINONES
申请人:Lipshutz H. Bruce
公开号:US20080086013A1
公开(公告)日:2008-04-10
Methods for the carbometallation of alkynes are presented. Those are useful for the synthesis of CoQ
10
and other ubiquinones as well as for the synthesis of ubiquinol analogs.
Enhancing Regiocontrol in Carboaluminations of Terminal Alkynes. Application to the One-Pot Synthesis of Coenzyme Q<sub>10</sub>
作者:Bruce H. Lipshutz、Tom Butler、Asher Lower、Jeff Servesko
DOI:10.1021/ol701469e
日期:2007.9.1
Me(3)Al and Cp(2)ZrCl(2) give rise to an especially effective reagent mix that results in virtually complete control of regiochemistry upon carboalumination of 1-alkynes. One timely application to coenzymeQ10 is highlighted. Regioisomers from subsequent coupling, which would otherwise be very difficult to separate, are avoided.