Synthesis of 1-Aryl-1H-pyrrolo[2,3-b]pyridines (1-Aryl-7-azaindoles) by a Thermal Dehydration-Cyclization-Dehydrogenation Sequence of 2-Arylamino-3-(1-hydroxyalkyl)pyridines
摘要:
1-Aryl-1H-pyrrolo[2,3-b]pyridines (1-aryl-7-azaindoles) have been prepared in reasonable yields from the corresponding 2-arylamino-3-(1-hydroxyalkyl)pyridines, on heating at ca. 250 degrees C, through a successive dehydration/cyclization/dehydrogenation sequence.
Rhodium(III)-catalyzed Mono- and Dialkenylation of <i>N</i>-Phenyl-7-azaindoles via Regioselective C–H Bond Cleavage
作者:Ryosuke Morioka、Tetsuya Satoh、Masahiro Miura
DOI:10.1246/cl.160234
日期:2016.6.5
Rhodium-catalyzed regioselective mono- and dialkenylation reactions of N-phenyl-7-azaindoles with alkenes proceed efficiently under rhodium(III) catalysis. The one-pot synthesis of unsymmetrically dialkenylated benzene derivative can also be achieved. Some of the alkenylated products exhibit solid-state fluorescence.
An efficient catalytic strategy toward the synthesis of N-substituted 3-methylindoles from inactive o-dihaloarenes and N-allylamines was developed by using a 1,3-bis(2,6-diisopropylphenyl)acenaphthoimidazol-2-ylidene (AnIPr)-ligated oxazoline palladacycle. It enabled a very broad substrate scope tolerating different functional groups, electronic properties, and steric bulkiness and afforded desired