Preparation of 2-Substituted 1,3-Bis(benzotriazol-1-yl)isoindolines by the Double Mannich Condensation Reaction of o-Phthalaldehyde with Primary Amines in the Presence of 1,2,3-1H-Benzotriazole
摘要:
The preparation of isoindolines (1,3-dihydro-2H-isoindoles) possessing two reactive centers as mixed animals is investigated.; In the double Mannich condensation reaction of o-phthalaldehyde with a variety of primary amines in the presence of 1,2,3-1H-benzotriazole (Bt-H) in MeCN, Bt-substituted isoindolines are obtained in fair to good yields when anilines are used as amines.