Enantioselective formal synthesis of tridemethylisovelleral
D Röme, M Johansson, O Sterner
Index: Roeme, Daniel; Johansson, Martin; Sterner, Olov Tetrahedron Letters, 2007 , vol. 48, # 4 p. 635 - 638
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Citation Number: 6
Abstract
A simple and efficient synthetic route to the bicyclic α, β-unsaturated β-keto ester methyl (3aS, 7aS)-6-oxo-2, 3, 3a, 6, 7, 7a-hexahydro-1H-indene-5-carboxylate, a versatile intermediate in the synthesis of biologically active unsaturated 1, 4-dialdehydes, is described. The synthesis includes a chirality introducing nonenzymatic asymmetric desymmetrization (ADS) reaction of a cyclic meso-anhydride 4 and a modified Hofmann ...
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