Novel preparation of chiral 3,2′-pyrrolidinyl spirooxindole from an enantioselective Michael addition between 3-(diphenylmethylene)-amino-oxindole and acrolein catalyzed by a cinchona alkaloid
Titel:
Novel preparation of chiral 3,2′-pyrrolidinyl spirooxindole from an enantioselective Michael addition between 3-(diphenylmethylene)-amino-oxindole and acrolein catalyzed by a cinchona alkaloid