One-pot concise syntheses of benzimidazo[2,1-a]isoquinolines by a microwave-accelerated tandem process-Science-Chemical Encyclopedia-lookchem

One-pot concise syntheses of benzimidazo[2,1-a]isoquinolines by a microwave-accelerated tandem process
Add time:09/28/2019 Source:infona.pl

Direct, efficient syntheses of the benzimidazo[2,1-a]isoquinoline ring system have been achieved with 2-bromoarylaldehydes, terminal alkynes, and 1,2-phenylenediamines by a microwave-accelerated tandem process in which a Sonogashira coupling, 5-endo cyclization, oxidative aromatization, and 6-endo cyclization can be performed in a single synthetic operation.

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