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DIELS-ALDER REACTION OF 1,2,4,5-HEXATETRAENE

Diels—Alder reaction of 1,2,4,5-hexatetraene tetramethyl[2.2]paracydophane-4,5,12,13-tetra-carboxylate. Org. Synth. 1990, Coll. Vol. VII, 485—490. [Pg.207]

DIELS-ALDER REACTION OF 1,2,4,5-HEXATETRAENE TETRAMETHYL[2.2]PARACYCLOPHANE-4,5,12,13-TETR AC ARBOX Y LATE... [Pg.96]

In addition, [2.2]paracyclophane was transformed into reactive bis-dienes. By reaction of the furan cycloadducts 49 with tetraphenylcyclopentadienone and thermal retro-Diels-Alder reaction [2.2](4,7)isobenzofuranophane 51 was obtained [38]. The highly reactive molecule was trapped in situ with para-ben-zoquinone. The more stable tetraphenylisobenzofuranophane 57 was synthesized via the classical procedure to [2.2]paracyclophanes of Hopf [39] the reaction of 1,2,4,5-hexatetraene 53 with dibenzoylacetylene 54 gave 4,5,12,13-tetra-benzoyl[2.2]paracyclophane (56), that was reduced and cyclized to the target molecule 57 [38]. [Pg.104]

See other pages where DIELS-ALDER REACTION OF 1,2,4,5-HEXATETRAENE is mentioned: [Pg.97]    [Pg.98]    [Pg.99]    [Pg.43]    [Pg.45]    [Pg.47]    [Pg.90]    [Pg.123]    [Pg.97]    [Pg.98]    [Pg.99]    [Pg.43]    [Pg.45]    [Pg.47]    [Pg.90]    [Pg.123]   
See also in sourсe #XX -- [ Pg.41 ]



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