Author/Authors :
Shoji، نويسنده , , Mitsuru and Kishida، نويسنده , , Satoshi and Kodera، نويسنده , , Yusuke and Shiina، نويسنده , , Isamu and Kakeya، نويسنده , , Hideaki and Osada، نويسنده , , HIROYUKI and HAYASHI، نويسنده , , Yujiro، نويسنده ,
Abstract :
Of the 16 possible modes of the oxidation-6π-electrocylization-Diels–Alder reaction cascade for an epoxyquinone, and eight for a 2-alkenyl-3-hydroxymethyl-2-cyclohexen-1-one, only the endo-anti(epoxide)-anti(Me)-hetero and endo-anti(Me)-hetero are respectively observed, while both the endo-anti(epoxide)-anti(Me)-hetero and exo-anti(epoxide)-anti(Me)-homo reaction modes occur with epoxy-4-hydroxycyclohexenones owing to a hydrogen-bonding interaction.
Keywords :
hydrogen-bonding , Diels–Alder reaction , 6?-electrocylization , epoxyquinol