β-Cyclodextrin-Mediated Acetic Acid Catalyzed Diastereoselective Mannich Reaction in Water
作者:Kasi Pitchumani、Subbiah Sukumari、Ismail Azath
DOI:10.1055/s-0032-1317156
日期:——
diastereoselective Mannichreaction has been carried out in water using a catalytic amount of β-cyclodextrin as a chiral host in the presence of acetic acid to give the corresponding β-aminoketones (Mannich bases) with good yield (up to 98%) and excellent diastereomeric excess (up to >99%). This Bronsted acid–chiral cyclodextrin composite catalyzed reaction proceeds in a syn -selective manner with 98:2