3-Allyl-1-silaindenes are synthesised from alkynes having an allylsilane moiety by a gold-catalysed intramolecular trans-allylsilylation reaction.
3-烯丙基-1-硅杂蒽是通过金催化的分子内反烯丙基硅烷化反应,从具有烯丙基硅烷分子的炔烃中合成的。
The synthesis of a key intermediate of tricyclic beta-lactam antibiotics
作者:Claudio Bismara、Romano Di Fabio、Daniele Donati、Tino Rossi、Russell J. Thomas
DOI:10.1016/0040-4039(95)00740-4
日期:1995.6
By employing an intramolecular Sakurai-type olefination it was possible to obtain the olefin 5, a keyintermediate in the synthesis of the broad spectrum tricyclic β-lactam antibiotic GG-326 1.
situ. This novel skeletal reorganization process was implemented into a concise total synthesis of the terpenes sabinone (18) and sabinol (19). Furthermore it is shown that conversion of the hydroxylatedenynes into the corresponding acetates followed by reaction with a cationic gold catalyst formed from (PPh3)AuCl and AgSbF6 opens entry into isomeric products bearing the ketone function at the C-2