In order to investigate the influence of spacer on the stereoselectivity of the addition of n‐butyllithium to aldehydes, three kinds of chiral polymers containing dimethylaminobornanol moieties were synthesized. The polymerization of the chiral monomers was carried out under various conditions. Cross‐linked chiral polymers were prepared by copolymerization of the chiral monomers with commercial p‐divinyl benzene. The conversion was found to be affected by the kind of solvents. Asymmetric addition of n‐butyllithium to benzaldehyde was carried out in the presence of the chiral polymers having dimethylaminobornanol moieties, and it was found that all three kinds of chiral polymers are effective for the asymmetric addition. Advantages of insoluble chiral polymers such as the ease of separation from products and the ability to be recycled, are discussed.
All Science Journal Classification (ASJC) codes
- Materials Science(all)