MCM-41 관련 키랄 촉매 반응

초록

The siliceous and Al-containing MCM-41s have been synthesized by a fast solvent evaporation methos using C22TMACl surfactant as a template and these mesoporous materials were used to immobilize the new chiral salen complexes by a new grafting method using 3-aminopropyl trimethoxysilane and 2,6-diformyl-4-tert-butylphenol. By applying this new grafting method using a diformylphenol as a building block of salen structure. The relation between the structural feature of new unsymmetric salen ligands and enantioselectivity was evaluated in this work. In addition, the chiral amino alcohols have been also immobilized on MCM-41 mesoporous materials and have been employed in the BH3 reduction of aromatic ketones to alcohols.