Zhou Yu-Xiao, Chen Yu-Zhen, Hu Yingli, Huang Gang, Yu Shu-Hong, Jiang Hai-Long
Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026 (P.R. China), Fax: (+86) 551-63607861.
Chemistry. 2014 Nov 10;20(46):14976-80. doi: 10.1002/chem.201404104. Epub 2014 Oct 7.
For the first time, a ∼100% sulfonic acid functionalized metal-organic framework (MOF), MIL-101-SO3H, with giant pores has been prepared by a hydrothermal process followed by a facile postsynthetic HCl treatment strategy. The replete readily accessible Lewis acidic and especially Brønsted acidic sites distributed throughout the framework as well as high stability endow the resultant MOF exceptionally high efficiency and recyclability, which surpass all other MOF-based catalysts, for the ring opening of epoxides with alcohols (especially, methanol) as nucleophiles under ambient conditions.
首次通过水热法，随后采用简便的后合成盐酸处理策略，制备出了一种具有大孔的、磺酸官能化程度约为100%的金属有机框架材料（MOF），即MIL-101-SO₃H。遍布整个框架的大量易于利用的路易斯酸性位点，尤其是布朗斯特酸性位点，以及高稳定性，赋予了所得的MOF在环境条件下以醇类（特别是甲醇）作为亲核试剂使环氧化物开环反应中极高的效率和可循环性，这超过了所有其他基于MOF的催化剂。
