B<sub>2</sub>O<sub>3</sub>/Al<sub>2</sub>O<sub>3</sub> as an Efficient and Recyclable Catalyst for the Synthesis of β-Amino Alcohols under Solvent-Free Conditions
Abstract A convenient and efficient procedure for the solvent-freesynthesis of β-amino alcohols has been achieved via B2O3/Al2O3-promoted highly regioselective ring opening of epoxides with aromatic amines in good to excellent yields at room temperature. Additionally, the catalyst can be recycled without affecting the catalytic property.