Patent ID: 6037505
Filing Date: 2000-03-14
Classification: B01J,C07B,C07C,C07F

Abstract:
A chiral oxazaborolidine of the formula ##STR24## wherein: R.sup.1 is hydrogen, (C.sub.1 -C.sub.8)alkyl, benzyl, heterocyclyl or phenyl optionally substituted independently with up to three (C.sub.1 -C.sub.8)alkyl, (C.sub.1 -C.sub.8)alkoxy or halo groups;D is a cis-fused 4-6 membered carbomonocyclic ring optionally substituted independently with up to three (C.sub.1 -C.sub.8)alkyl, benzyl, heterocyclyl or phenyl optionally substituted independently with up to three (C.sub.1 -C.sub.8)alkyl, (C.sub.1 -C.sub.8)alkoxy or halo groups;a cis-fused 6-9 membered carbobicyclic system optionally substituted independently with up to three (C.sub.1 -C.sub.8)alkyl, benzyl, heterocyclyl or phenyl optionally substituted independently with up to three (C.sub.1 -C.sub.8)alkyl, (C.sub.1 -C.sub.8)alkoxy or halo groups; or a cis-fused system having the structure ##STR25## wherein R.sup.6 and R.sup.7 are each independently H, (C.sub.1 -C.sub.8)alkyl, (C.sub.1 -C.sub.8)alkoxy or halo.