FeCl3-catalyzed sequential cyclization for the construction of 12-aryl 5,7-dihydropyrido[2,3-b:6,5-b']diindoles
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DOI: 10.1016/j.tetlet.2020.152334
Abstract: Abstract A facile approach to prepare 12-aryl 5,7-dihydropyrido[2,3-b:6,5-b']diindoles via tandem cyclizations is described. FeCl3 is used as the catalyst for the reaction between o-aminophenylacetonitriles and aromatic aldehydes, generating 5,7-dihydropyrido[2,3-b:6,5-b']diindoles derivatives in moderate to high yields. read more here.
Keywords: fecl3 catalyzed; dihydropyrido diindoles; dihydropyrido; sequential cyclization ... See more keywords
Multisite-Sequential Cyclization To Construct 1,2,4-Triazole-Based N-Fused Heterocyclics.
Sign Up to like & getrecommendations! Published in 2023 at "Organic letters"
DOI: 10.1021/acs.orglett.3c00322
Abstract: A feasible protocol that uses atomic groups (KSCN, KSeCN, and NH2CN), o-bromobenzoyl hydrazides, and formyls as reaction factors to synthesize N-fused 1,2,4-triazole with benzothiazides, benzoselenazinones, and quinazolinones was proposed. The method overcomes the lengthy multistep… read more here.
Keywords: triazole based; multisite sequential; sequential cyclization; cyclization construct ... See more keywords