Diastereoselective Synthesis of 2-Alkoxy-5-tert-butylmandelic Acid
Lewis acid catalyzed addition of N-glyoxyloyl-(2R)-bornane-10,2-sultam to O-protected 4-tert-butylphenols is presented. The reactions proceed with excellent diastereoselectivities. The products of the addition are hydrolyzed with LiOH·H2O yielding optically pure α- hydroxycarboxylic acids.
Bauer, Tomasz,Gajewiak, Joanna
p. 20 - 22
(2007/10/03)
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