Enantioselective acylation of 2-hydroxymethyl-2,3-dihydrobenzofurans catalysed by lipase from Pseudomonas cepacia (Amano PS) and total stereoselective synthesis of (-)-(R)-MEM-protected arthrographol
S. Ramadas et Gld. Krupadanam, Enantioselective acylation of 2-hydroxymethyl-2,3-dihydrobenzofurans catalysed by lipase from Pseudomonas cepacia (Amano PS) and total stereoselective synthesis of (-)-(R)-MEM-protected arthrographol, TETRAHEDR-A, 11(16), 2000, pp. 3375-3393
Lipase Amano PS catalysed acylation of (+/-)-2-hydroxymethyl-2,3-dihydroben
zofurans using vinyl acetate as the acyl donor in n-hexane gave (-)-(R)-2-a
cetoxymethyl-2,3-dihydrobenzo and (+)-(S)-2-hydroxymethyl-2,3-dihydrobenzof
urans in high enantiomeric excess. (-)-(R)-Acetate 18j is converted to (-)-
(R)-MEM-protected arthrographol 22. (C) 2000 Published by Elsevier Science
Ltd.