2023
DOI: 10.1055/a-2035-6420
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Bimetallic Catalyzed Synthesis of 2-Arylindoles

Abstract: A bimetallic synthesis of 2-arylindoles from alcohols and anilines is described. The dehydrogenation or oxidation of a secondary alcohol were performed by Ni- and Mn-catalyzed reactions, respectively. The formed ketone was converted into an imine intermediate that was later cyclized to the corresponding 2-arylindole by a Pd-catalyzed oxidative cyclization. A set of 2-arylindoles was prepared, without isolation of the intermediates generated. The compatibility of the catalysts was investigated, and the optimize… Show more

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Cited by 4 publications
(3 citation statements)
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“…Marques and coworkers recently disclosed a novel one-pot bimetallic catalytic approach for the synthesis of indole derivatives using secondary alcohols and anilines as starting materials (Scheme 12) [8]. A commercially available nickel catalyst combined with a simple phosphine was investigated for the dehydrogenation of alcohol (49); a phosphine-free manganese complex was also synthesized to achieve this oxidation step.…”
Section: Bimetallic Approaches Involving Indole Scaffoldsmentioning
confidence: 99%
See 1 more Smart Citation
“…Marques and coworkers recently disclosed a novel one-pot bimetallic catalytic approach for the synthesis of indole derivatives using secondary alcohols and anilines as starting materials (Scheme 12) [8]. A commercially available nickel catalyst combined with a simple phosphine was investigated for the dehydrogenation of alcohol (49); a phosphine-free manganese complex was also synthesized to achieve this oxidation step.…”
Section: Bimetallic Approaches Involving Indole Scaffoldsmentioning
confidence: 99%
“…One particularly promising area of bimetallic catalysis is the synthesis of N-heterocycles, which are essential building blocks in numerous biologically active compounds and pharmaceuticals [8]. Traditional synthetic routes for N-heterocycles have some drawbacks, such as the involvement of multiple steps, harsh conditions, and the generation of significant waste.…”
Section: Introductionmentioning
confidence: 99%
“…Em conclusão, foram apresentadas diversas metodologias para a síntese de iminas e seus derivados N-heterocíclicos [40,41], em particular indoles e azaindoles, tendo sido destacada a importância do desenvolvimento de novos métodos de síntese mais sustentáveis. Neste contexto, destacaram-se os estudos recentes envolvendo uma metodologia sintética bimetálica one-pot, usando catalisadores de manganês sem recurso a fosfinas.…”
Section: Desenvolvimento De Uma Estratégia Sintética Bimetálica One-p...unclassified