An Environmentally Benign Catalytic Method for Efficient and Selective Nucleophilic Ring Opening of Oxiranes by Zirconium Tetrakis(dodecyl Sulfate)
作者:Maasoumeh Jafarpour、Abdolreza Rezaeifard、Marzieh Aliabadi
DOI:10.1002/hlca.200900239
日期:2010.3
An operationally simple and environmentally benign protocol for a highly regio‐ and chemoselective preparation of β‐substituted alcohols by means of ring‐opening reactions of oxiranes with various aliphatic alcohols, H2O, NaN3, and NaCN as nucleophiles in the presence of catalytic amounts of zirconium tetrakis(dodecyl sulfate) as Lewis acid/surfactant‐combined catalysts (LASCs) was developed. The high
一种操作简单且对环境无害的方案,可在催化作用下,通过环氧乙烷与各种脂肪族醇,H 2 O,NaN 3和NaCN作为亲核体的开环反应,高度区域和化学选择性地制备β-取代的醇研制了一定数量的四(十二烷基硫酸)锆作为路易斯酸/表面活性剂组合催化剂(LASC)。催化剂的高效率通过在所需时间内获得的高产物收率,尤其是通过Zr IV配合物的可重复使用性得到了证实。