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Published in 2019 at "Tetrahedron Letters"
DOI: 10.1016/j.tetlet.2019.01.047
Abstract: Abstract Nonstabilized azomethine ylides react with 4-arylidene-2-phenyloxazol-5(4H)-ones to form diazaspiro[4.4]nonenes, which were hydrolyzed to aryl cucurbitine derivatives in 35–67% overall yield.
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Keywords:
ylides synthesis;
aryl cucurbitine;
azomethine ylides;
nonstabilized azomethine ... See more keywords
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Published in 2022 at "Organic letters"
DOI: 10.1021/acs.orglett.2c01234
Abstract: Heteroarylmethylenephosphorus ylides underwent Michael addition with alkynediones and alkynediesters, followed by intramolecular cyclization and elimination of triphenylphosphine oxide to afford 1,2-diaroylbenzenes and 1,2-alkoxycarbonylcarbo- and heterocycles. The analogous (4 + 2) cycloaddition led to the formation…
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Keywords:
phosphorus ylides;
ylides synthesis;
cycloaddition phosphorus;
formal cycloaddition ... See more keywords