Reversal of Regioselectivity of Nitrone
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Branislav Dugoviฤ; Lubor Fiลกera; Michalโ
K. Cyranski; Christian Hametner; Nada Pr
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Article
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2005
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John Wiley and Sons
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German
โ 266 KB
## Abstract The regioโ and stereoselectivity of cycloadditions of the nitrone 1a and the chiral, sugarโderived nitrones 13a and 13b with 3โ(propโ2โenoyl)โ1,3โoxazolidinโ2โone (2) depends on the nature of the __Lewis__ acid catalyst used. Addition of __Lewis__ acid reverses the regioselectivity of t