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Diels-Alder reaction |
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Diels-Alder reaction [¦dēlz ¦äl·dər rē‚ak·shən] (organic chemistry) The 1,4 addition of a conjugated diolefin to a compound, known as a dienophile, containing a double or triple bond; the dienophile may be activated by conjugation with a second double bond or with an electron acceptor. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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5) that BCI-MX, due to its unique chemical structure, reacts with the dienes/trienes formed along the polymer backbone as a result of reversion via the classical Diels-Alder reaction mechanism to form new thermally stable, long and flexible carbon-carbon crosslinks which compensate for the loss of sulfidic crosslinks occurring during reversion (figure 1). When Corey first reported a laboratory synthesis of prostaglandins 21 years ago, chemists had no way of controlling the orientation at which these two reactants would approach each other during this step, known as a Diels-Alder reaction. Trost of the University of Wisconsin in Madison has discovered a reaction that mimics the Diels-Alder reaction but creates five-membered rings instead of six-membered rings. |
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