Chemoenzymatic synthesis of 2-substituted 2-fluoro-1,3-dioxygenated chiral building blocks
摘要:
A series of 2-substituted-2-fluoro-1,3-dioxygenated chiral building blocks are synthesized via a chemoenzymatic route using either (i) lipase catalyzed monohydrolysis of suitably functionalized malonic diesters, or (ii) lipase catalyzed monoacetylation of suitably functionalized 1,3-propanediols. (C) 1999 Elsevier Science Ltd. All rights reserved.
Lipase mediated preparation of differently protected homochiral 2-aryl-2-fluoro-1,3-propanediols
摘要:
Lipase mediated asymmetric monohydrolysis of 2-aryl-2-fluoromalonic acid diesters or monoacetylation of 2-aryl-2-fluoro-1,3-propanediols affords chiral fluorinated polyfunctionalized C-3 synthons in excellent enantiomeric excess and acceptable chemical yields. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.