Tetrahedron Letters p. 4489 - 4492 (1989)
Update date:2022-08-02
Topics:
Mucha, Bernd
Hoffmann, H.Martin R.
The glycosidic bond of 6-alkoxy-2,3-dihydro-6H-pyran-3-ones (3) is made advantageously in the presence of catalytic ZnCl2*etherate.A palladium-assisted transformation of 3 affords trans-4-alkoxy-5-hydroxy-2-cyclopenten-1-ones (4) in good yield.
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