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   Articles with "isothiocyanato oxindoles" as a keyword



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Construction of Novel Tetrahydro‐β‐carboline‐1‐thione Spirooxindoles by Brønsted Acid Mediated Formal [3+3] Cyclization of 3‐Indolylmethanols with 3‐Isothiocyanato Oxindoles

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recommendations! Published in 2017 at "Journal of Heterocyclic Chemistry"

DOI: 10.1002/jhet.2708

Abstract: p-Toluenesulfonic acid mediated formal [3+3] cyclization of 3-indolylmethanols with 3-isothiocyanato oxindoles was realized. This transformation allowed for the synthesis of a series of novel tetrahydro-β-carboline-1-thione spirooxindoles in moderate to excellent yields (up to 99%) with… read more here.

Keywords: acid mediated; mediated formal; indolylmethanols isothiocyanato; cyclization indolylmethanols ... See more keywords
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Organocatalytic double arylation of 3-isothiocyanato oxindoles: Stereocontrolled synthesis of complex spirooxindoles

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recommendations! Published in 2019 at "Tetrahedron"

DOI: 10.1016/j.tet.2018.11.016

Abstract: Abstract Quinones, precursors of aromatic structures, were firstly employed as the electrophiles for the organocatalytic Michael addition/cyclization cascade reaction with versatile 3-isothiocyanato oxindoles. Chiral bifunctional organocatalyst was appropriate for this enantioselective transformation to afford a… read more here.

Keywords: double arylation; arylation isothiocyanato; oxindoles stereocontrolled; isothiocyanato oxindoles ... See more keywords
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Fischer's base-triggered formal (3+2) cycloadditions with 3-isothiocyanato oxindoles as acceptor-donor synthons.

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recommendations! Published in 2023 at "Chemical communications"

DOI: 10.1039/d3cc00376k

Abstract: Herein, previously unreported Fischer's base reactants serving as useful 2C building blocks in (3+2) cycloaddition reactions to build a library of bispiro[Fischer's base-oxindole] hybrids are described. These structurally intriguing products containing three adjacent quaternary stereocentres… read more here.

Keywords: fischer base; acceptor donor; base triggered; isothiocyanato oxindoles ... See more keywords