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2005
Pyran derivatives
R 0340
Efficient Enantioselective Synthesis of Functionalized Tetrahydropyrans
Ru-Catalyzed Asymmetric Ring-Opening Metathesis/Cross-Metathesis
05- 115 by
(AROM/CM). — The title reaction is performed with oxabicyclic olefins, significantly
less strained than norbornenes so far used for these conversions. In general iodoruthenium complex (Ib) initiates the reactions with significantly higher asymmetric induction than chloro complex (Ia). On the other hand, the latter is more active than the iodo
analogue (to be continued). — (GILLINGHAM, D. G.; KATAOKA, O.; GARBER, S.
B.; HOVEYDA*, A. H.; J. Am. Chem. Soc. 126 (2004) 39, 12288-pp; Dep. Chem.,
Merkert Chem. Cent., Boston Coll., Chestnut Hill, MA 02467, USA; Eng.) — Klein
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