A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, Recommanded Product: 538-58-9, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. Recommanded Product: 538-58-9, Name is 1,5-Diphenylpenta-1,4-dien-3-one, molecular formula is C17H14O. In a Article, authors is Kobayashi, Satoru£¬once mentioned of Recommanded Product: 538-58-9
A diene-transmissive Diels-Alder reaction involving inverse electron-demand hetero-Diels-Alder cycloaddition of cross-conjugated azatrienes
The initial inverse electron-demand hetero-Diels-Alder reaction of N-sulfonyldivinylmethanimine with electron-rich dienophiles (ethyl vinyl ether and ethyl vinyl sulfide) affords [4+2] cycloadducts with high endo selectivity. The monocycloadducts then undergo a second Diels-Alder reaction on the newly formed diene unit with electron-deficient dienophiles (tetracyanoethylene, 4-phenyl-1,2,4-triazoline-3,5-dione, and N-phenylmaleimide) to give highly stereoselectively the crossed biscycloadducts, hexa- and octahydroquinolines, and octahydropyridopyridazines.
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Reference£º
Synthesis and Crystal Structure of a Chiral?C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur¨Cnitrogen¨Coxygen ligand derived from aminothiourea and sodium?D-camphor-¦Â-sulfonate