Application of hollow core-shell type mesoporous materials in asymmetric catalysis.

초록

The deposition of hydrophilic precursor sol containing surfactants in the hydrophobic solvents onto the mono-dispersed polymer surfaces has been applied to produce the mesoporous shells after calcination. The silica hollow spheres having mesopores in the wall of shell with different macro-cavity sizes could be fabricated, and the chiral catalysts were entrapped inside of silica microcapsules or immobilized non-covalently in the pores. The catalytic activity was examined in the synthesis of chiral β-blockers or other chiral building blocks.