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2005
Thiazine derivatives
R 0610
Asymmetric Hetero-Diels—Alder Reactions of N-Sulfinyl Dienophiles Using
Bis(oxazoline)—Copper(II) and —Zinc(II) Triflates. — It is found that
07- 157 Chiral
asymmetric hetero-Diels—Alder reactions of N-sulfinyl dienophiles can be performed
effectively in the presence of stoichiometric and catalytic amounts of the complexes
Cu(O-Tf)2/(Ia), Cu(O-Tf)2/(Ic), Zn(O-Tf)2/(Ia), and Zn(O-Tf) 2/(Ic). The resulting products are useful synthons which can easily be transformed into various compounds. —
(BAYER, A.; ENDESHAW, M. M.; GAUTUN*, O. R.; J. Org. Chem. 69 (2004) 21,
7198-7205; Dep. Chem., Norw. Univ. Sci. Technol., N-7491 Trondheim, Norway;
Eng.) — Jannicke
2005
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