title: Active and Recyclable Catalytic Synthesis of Indoles by Reductive Cyclization of 2-(2-Nitroaryl)acetonitriles in the Presence of Co-Rh Heterobimetallic Nanoparticles with Atmospheric Hydrogen under Mild Conditions.
abstract: A cobalt-rhodium heterobimetallic nanoparticle-catalyzed reductive cyclization of 2-(2-nitroaryl)acetonitriles to indoles has been achieved. The tandem reaction proceeds without any additives under the mild conditions (1 atm H2and 25 °C). This procedure could be scaled up to the gram scale. The catalytic system is significantly stable under these reaction conditions and could be reused more than ten times without loss of catalytic activity.
authors.affiliation: Department of Chemistry, College of Natural Sciences, Seoul National University , Seoul 08826, Korea.
authors.forename: Isaac
authors.initials: I
authors.lastname: Choi
authors.affiliation: Department of Chemistry, College of Natural Sciences, Seoul National University , Seoul 08826, Korea.
authors.forename: Hyunho
authors.initials: H
authors.lastname: Chung
authors.affiliation: Department of Chemistry, College of Natural Sciences, Seoul National University , Seoul 08826, Korea.
authors.forename: Jang Won
authors.initials: JW
authors.lastname: Park
authors.affiliation: Department of Chemistry, College of Natural Sciences, Seoul National University , Seoul 08826, Korea.
authors.forename: Young Keun
authors.initials: YK
authors.lastname: Chung