Highly Regioselective Tandem Reaction of Ene-Yne-Oxazolones Induced by H‑Phosphonates: Construction of Phosphinylindane Derivatives
A highly regioselective divergent approach for the phosphine-containing indane/indene derivatives from the ene-yne-oxazolone precursors was reported. An insight into the reaction mechanism involving the phospha-1,4-addition followed by 5-exo-dig ring closure with a concomitant C–P/C–C bond formation...
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Veröffentlicht in: | Journal of organic chemistry 2021-07, Vol.86 (14), p.9360-9383 |
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container_title | Journal of organic chemistry |
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creator | Worayuthakarn, Rattana Deesiri, Sirikan Chainok, Kittipong Wannarit, Nanthawat Ruchirawat, Somsak Thasana, Nopporn |
description | A highly regioselective divergent approach for the phosphine-containing indane/indene derivatives from the ene-yne-oxazolone precursors was reported. An insight into the reaction mechanism involving the phospha-1,4-addition followed by 5-exo-dig ring closure with a concomitant C–P/C–C bond formation was also proposed. This promising protocol utilized H-phosphonate as the phosphonating reagent in a silver-catalyzed or base-mediated cascade cyclization to construct the corresponding phosphorylated spiroindenoxazolones and amidoindenes, respectively, in good yields (up to 88% yield). |
doi_str_mv | 10.1021/acs.joc.1c00609 |
format | Article |
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Org. Chem</addtitle><date>2021-07-16</date><risdate>2021</risdate><volume>86</volume><issue>14</issue><spage>9360</spage><epage>9383</epage><pages>9360-9383</pages><issn>0022-3263</issn><eissn>1520-6904</eissn><abstract>A highly regioselective divergent approach for the phosphine-containing indane/indene derivatives from the ene-yne-oxazolone precursors was reported. An insight into the reaction mechanism involving the phospha-1,4-addition followed by 5-exo-dig ring closure with a concomitant C–P/C–C bond formation was also proposed. This promising protocol utilized H-phosphonate as the phosphonating reagent in a silver-catalyzed or base-mediated cascade cyclization to construct the corresponding phosphorylated spiroindenoxazolones and amidoindenes, respectively, in good yields (up to 88% yield).</abstract><pub>American Chemical Society</pub><doi>10.1021/acs.joc.1c00609</doi><tpages>24</tpages><orcidid>https://orcid.org/0000-0002-0572-4871</orcidid></addata></record> |
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title | Highly Regioselective Tandem Reaction of Ene-Yne-Oxazolones Induced by H‑Phosphonates: Construction of Phosphinylindane Derivatives |
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