An efficient lipase catalysed synthesis of optically enriched alpha -haloge
nated amides with concomitant optical enrichment of the starting alpha -hal
oesters is described. Candida antarctica lipase (CAL) was found to be a bet
ter catalyst over porcine pancreatic lipase (PPL) and Candida cylindracea l
ipase (CCL). The effect of different organic solvents was also studied. (C)
2001 Elsevier Science Ltd. All rights reserved.