cheminform abstract: trimethylsilyl trifluoromethanesulfonate mediated addition—cyclization of...

ChemInform 2008, 39, issue 48 ©WlLEY-VCH Verlag GmbH & Co. KGaA, Weinheim www.cheminform.wiley-vch.de Isoxazole derivatives R 0240 Trimethylsilyl Trifluoromethanesulfonate Mediated Addition—Cyclization of N-Vinyloxazolidin-2-ones to Nitrones: An Efficient Access to 4-Substituted 5-Aza- isoxazolidines. — The procedure is also applicable to thermally unstable nitrones and bulky dipolarophiles providing an efficient alternative to known methods. Two of four possible diastereomers are formed which can be easily separated by flash chromatog- raphy. — (NGUYEN, T. B.; MARTEL, A.; DHAL, R.; DUJARDIN*, G.; Synlett 2008, 13, 2041-2045; CNRS, Univ. Maine, F-72085 Le Mans, Fr.; Eng.) — S. Adam 48- 126

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Page 1: ChemInform Abstract: Trimethylsilyl Trifluoromethanesulfonate Mediated Addition—Cyclization of N-Vinyloxazolidin-2-ones to Nitrones: An Efficient Access to 4-Substituted 5-Azaisoxazolidines

www.cheminform.wiley-vch.de

Isoxazole derivativesR 0240 Trimethylsilyl Trifluoromethanesulfonate Mediated Addition—Cyclization of

N-Vinyloxazolidin-2-ones to Nitrones: An Efficient Access to 4-Substituted 5-Aza-isoxazolidines. — The procedure is also applicable to thermally unstable nitrones and bulky dipolarophiles providing an efficient alternative to known methods. Two of four possible diastereomers are formed which can be easily separated by flash chromatog-raphy. — (NGUYEN, T. B.; MARTEL, A.; DHAL, R.; DUJARDIN*, G.; Synlett 2008, 13, 2041-2045; CNRS, Univ. Maine, F-72085 Le Mans, Fr.; Eng.) — S. Adam

48- 126

ChemInform 2008, 39, issue 48 ©WlLEY-VCH Verlag GmbH & Co. KGaA, Weinheim

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