Reactive 4a-alkyl-4aH-carbazoles by catalytic dearomatisation, and their unusual dimerisation and dealkylation reactions
作者:Robin B. Bedford、Craig P. Butts、Mairi F. Haddow、Robert Osborne、Rosalind F. Sankey
DOI:10.1039/b910894g
日期:——
Despite their intrinsic instability, 4a-alkyl-4aH-carbazoles can be generated by a catalytic dearomatisation process; their reactivity is demonstrated by facile dealkylation and highly unusual cyclodimerisation processes.
Palladium-catalyzed synthesis of carbazoles from N-(2-halophenyl)-2,6-diisopropylanilines via C–C cleavage
作者:Anthony R. Chianese、Scott L. Rogers、Hanna Al-Gattas
DOI:10.1016/j.tetlet.2010.02.098
日期:2010.4
The synthesis of 1-isopropyl-substituted carbazoles by the palladium-catalyzed dealkylative cyclization of N-(2-halophenyl)-2,6-diisopropylanilines is described. The reaction involves intramolecular C–C bond formation, coupled with the cleavage of a C–X bond and a C–C bond, and is proposed to proceed through the formation of a dearomatized intermediate.