Oxygen 1,4-cycloaddition

Acetyl peroxy nitrate, stmcture, 103, 104 Acetylsaturejol, triplet oxygen cycloaddition, 202, 204... [Pg.1439]

Arylidene-,6-ionones, triplet oxygen cycloaddition, 199, 201 Aryl phosphites, ozone adducts, 732 Aryl-substituted olefins, selenide-catalyzed epoxidation, 384-5 Ascaridole... [Pg.1443]

Chiral metal complexes, aUylic alcohol epoxidation catalysis, 394-401 Chiral naphthalene derivatives, singlet oxygen cycloaddition, 271... [Pg.1450]

DimethyloxazoUdine derivatives of sorbic acid, singlet oxygen cycloaddition, 260, 261... [Pg.1455]

EPR see Electron paramagnetic resonance Ergosterol 3,6-acetate, triplet oxygen cycloaddition, 211... [Pg.1461]

Isopropyl-l, 3-cyclohexadiene, singlet oxygen cycloaddition, 262-3 Isopropyl ether, hydrotrioxide formation, 740 7-Isopropylidenenorbomenes,... [Pg.1470]

Peroxyketahzation, intramolecular, 276-7 Peroxyketals, triplet oxygen cycloaddition,... [Pg.1481]

While both hydrogenation and epoxidation reactions of (7) (and substituted forms) occur on the oxepin valence tautomer, cycloaddition reactions proceed more readily on the arene oxide form (where the diene is closer to planarity). Thus the dienophiles DM AD and maleic anhydride (MA) readily yielded [4 + 2] cycloadducts with (7) as shown in Scheme 22 (67AG(E)385). A similar type of singlet oxygen cycloaddition reaction gave an unstable endoperoxide (106) which upon heating yielded trans-benzene trioxide quantitatively (equation 14). (75JOC3743). [Pg.569]

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