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2005
Hydroxylamine derivatives
P 0050
Ene Reactions of Acyl Nitroso Intermediates with Alkenes and Their Halocycliza— The title reactions, useful as a key step in natural product synthesis, are inves15- 059 tion.
tigated in the presence of different types of transition metal catalysts. Best results are
obtained with substrates (VII) and (IV) in the presence of CuI. Product (VIIIb) is further
halocylized to the oxazoles (IX) and (X). — (FAKHRUDDIN, A.; IWASA*, S.;
NISHIYAMA, H.; TSUTSUMI, K.; Tetrahedron Lett. 45 (2004) 51, 9323-9326; Sch.
Mater. Sci., Toyohashi Univ. Technol., Toyohashi, Aichi 441, Japan; Eng.) —
Lindner
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