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2005
Rearrangements
O 0140
A Highly Stereoselective Ether Directed Palladium Catalyzed Aza-Claisen Rear— The incorporation of adjacent ether groups into allylic trichloroacet31- 044 rangement.
imidates leads to highly stereoselective [3,3]-sigmatropic rearrangement reactions to
give the allylic trichloroamides (IV)/(V). Best results are achieved in the presence of
additional oxygen in the ether moiety [cf. (IIIa), (IIIb)] while bulky ether groups are
less efficient [cf. (IIIe)]. — (JAMIESON, A. G.; SUTHERLAND*, A.; Org. Biomol.
Chem. 3 (2005) 5, 735-736; Dep. Chem., Univ. Glasgow, Glasgow G12 8QQ, UK;
Eng.) — Mischke
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