Organolithium additions to styrene are synthetically viable
作者:Xudong Wei、Richard J. K. Taylor
DOI:10.1039/cc9960000187
日期:——
In diethyl ether at –78 to –25 °C, styrene undergoes efficient addition reactions with a range of alkyllithium reagents, and the intermediate benzyllithiums can be trapped (e.g. with carbon dioxide and chlorotrimethylsilane); two aryl-substituted styrenes are shown to react in a similar manner.
Organolithium addition to styrene and styrene derivatives: scope and limitations
作者:Xudong Wei、Paul Johnson、Richard J. K. Taylor
DOI:10.1039/a910195k
日期:——
Styrene and a range of aryl-substituted styrenederivatives are shown to undergo efficient carbolithiation–trapping reactions in diethyl ether at −78 to −25 °C. The reactivities of different types of organolithium reagents were found to be: tertiary, secondary > primary; ≫ alkenyl, methyl, phenyl. Electron donating groups (e.g. methoxy and dialkylamino) at the ortho- or para- positions of the benzene