(R,R)-1,3-Dibenzylisoindoline: a new C2-symmetric secondary amine, by stereoselective and regioselective .alpha.,.alpha.'-dialkylation of isoindoline, and an improved procedure for the preparation of isoindoline
(R,R)-1,3-Dibenzylisoindoline: a new C2-symmetric secondary amine, by stereoselective and regioselective .alpha.,.alpha.'-dialkylation of isoindoline, and an improved procedure for the preparation of isoindoline