A Tandem Oxidative Annulation Strategy for the Synthesis of Tetracyclic 3-Spirooxindole Benzofuranones.
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DOI: 10.1021/acs.orglett.7b01374
Abstract: A simple and efficient method was developed for the construction of the medicinally important tetracyclic 3-spirooxindole benzofuranones. In this highly atom- and step-economical one-pot protocol, one quaternary carbon center, two new cycles, and four new… read more here.
Keywords: tandem oxidative; oxidative annulation; spirooxindole benzofuranones; tetracyclic spirooxindole ... See more keywords
Tandem Oxidative Ring-Opening/Cyclization Reaction in Seconds in Open Atmosphere for the Synthesis of 1-Tetralones in Water-Acetonitrile.
Sign Up to like & getrecommendations! Published in 2018 at "Organic letters"
DOI: 10.1021/acs.orglett.8b03246
Abstract: A mild and practical tandem oxidative ring-opening/cyclization reaction mediated by Ce4+ for the synthesis of 1-tetralones is presented. This rapid transformation was completed within 30 s and conducted in an open reactor at 0 °C… read more here.
Keywords: tandem oxidative; ring opening; oxidative ring; cyclization reaction ... See more keywords
Fabrication of Core–Shell-Structured Organic–Inorganic Hybrid Nanocatalyst for the Expedient Synthesis of Polysubstituted Oxazoles via Tandem Oxidative Cyclization Pathway
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DOI: 10.1021/acsomega.7b00382
Abstract: The quest for designing efficient heterogeneous catalytic systems for tandem oxidative cyclization reactions has provided a great impetus to research efforts, as it enables the step-economic construction of complex heterocyclic molecules as well as confers… read more here.
Keywords: shell structured; tandem oxidative; core shell; structured organic ... See more keywords
Zircon PrVO4: an efficient heterogeneous catalyst for tandem oxidative synthesis of 2,3-disubstituted quinoline derivatives.
Sign Up to like & getrecommendations! Published in 2023 at "Dalton transactions"
DOI: 10.1039/d3dt00435j
Abstract: The current study addresses the usage of inherent redox couplets in PrVO4 crystallizing in a zircon-type structure for tandem oxidative transformation. Monophasic PrVO4, synthesized using a solution combustion synthesis method, showed a tetragonal zircon-type structure… read more here.
Keywords: synthesis disubstituted; quinoline derivatives; synthesis; zircon prvo4 ... See more keywords
Tandem Oxidative Phenol Dearomatization/Formal [3+2] Annulation Protocol En Route to Highly Functionalized Benzothiophenes
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DOI: 10.1055/s-0036-1588415
Abstract: A new strategy for the synthesis of benzothiophenes through formal [3+2] annulation of sulfanylacetaldehyde and cyclohexa-2,4-dien-1-one monoketals has been developed. This approach relies on the ease of aromatization of tetrahydrobenzothiophenone derivatives prepared by the aforementioned… read more here.
Keywords: tandem oxidative; annulation; oxidative phenol; formal annulation ... See more keywords