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Lewis acid-catalyzed nitrone cycloadditions to bidentate and tridentate α,β-unsaturated ketones. High rate acceleration, absolutely endo-selective and regioselective reactions

✍ Scribed by Shuji Kanemasa; Takashi Uemura; Eiji Wada


Book ID
118549874
Publisher
Elsevier Science
Year
1992
Tongue
French
Weight
301 KB
Volume
33
Category
Article
ISSN
0040-4039

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A catalytic amount of aluminum tris(2,6-diphenylphenoxide), designated as ATPH, catalyzes nitrone cycloaddition reactions between N-benzylideneaniline N-oxide and a,b-unsaturated carbonyl acceptors and induces a dramatic rate enhancement showing high to exclusive control of regioselectivity in favor