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Stereoselective Synthesis of all Stereoisomeric 2-Amino-3-Hydroxy-4-Phenylbutanolides

✍ Scribed by Susan Gair; Richard F.W Jackson*; Paul A Brown

Publisher: Elsevier Science
Year: 1997
Tongue: French
Weight: 501 KB
Volume: 38
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(97)00544-3

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✦ Synopsis

Diastereoselectivemethylationof the ketone 5a leads ro the anti-derivative4a; the other diastereoisomer 4b may be obrained by a deprotonatiotrheprotonationsequence. Each of the methylatedproductsmay be reducedstereoselectivelyin either sense by appropriatechoice of reagent, providinga route to all stereoisomersof the title 2-amino-3 -hydroxy-4-phenylbutanolides IOa-d. 01997 Elsevier ScienceLtd.

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