有机纺织催化。
Organotextile catalysis.
机构信息
Max-Planck-Institut für Kohlenforschung, Mülheim an der Ruhr, Germany.
出版信息
Science. 2013 Sep 13;341(6151):1225-9. doi: 10.1126/science.1242196.
Throughout human history, textiles have been integral to daily life, but their exploration in catalysis has been rare. Herein, we show a facile and permanent immobilization of organocatalysts on the textile nylon using ultraviolet light. The catalyst and the textile material require no chemical modification for the immobilization. All of the prepared textile-immobilized organocatalysts (a Lewis basic, a Brønsted acidic, and a chiral organocatalyst) display excellent stability, activity, and recyclability for various organic transformations. Very good enantioselectivity (>95:5 enantiomeric ratio) can be maintained for more than 250 cycles of asymmetric catalysis. Practical and straightforward applications of textile organocatalysis may be beneficial for various fields by offering inexpensive and accessible functionalized catalytic materials.
纵观人类历史,纺织品一直是日常生活的重要组成部分,但它们在催化领域的应用却很少。在此,我们展示了一种简便且永久的将有机催化剂固定在纺织品尼龙上的方法,使用的是紫外光。催化剂和纺织材料在固定化过程中不需要进行化学修饰。所有制备的纺织固定化有机催化剂(一种路易斯碱性、一种布朗斯台德酸性和一种手性有机催化剂)在各种有机转化中都表现出优异的稳定性、活性和可回收性。超过 250 个不对称催化循环后,仍能保持非常好的对映选择性(>95:5 对映体比例)。通过提供廉价且易于获得的功能化催化材料,纺织有机催化的实际和直接的应用可能对各个领域都有益处。