作者:Ashok Jangam、David E. Richardson
DOI:10.1016/j.tetlet.2010.09.102
日期:2010.12
An improved method is described for selective room temperature epoxidation of alkenes by sodium chlorite in a solvent mixture of ethanol, acetonitrile, and water buffered at pH 7. In addition, the use of aldehydes as promoters in chlorite oxidations is described for the first time. The amount of sodium chlorite, the solvent mixture, and the addition of formaldehyde as a practical promoter were optimized
描述了一种改进的方法,用于在乙醇,乙腈和pH值为7的水混合的溶剂混合物中,用亚氯酸钠对烯烃进行选择性的室温环氧化。此外,首次描述了在绿泥石氧化中使用醛作为促进剂。优化了亚氯酸钠的量,溶剂混合物以及作为实用促进剂的甲醛的添加。在优化研究中,将苯乙烯用作测试底物,并通过使用各种亲核和亲电底物评估了该方法的一般性。用苯乙烯获得高达89%的收率,其他亲核烯烃很容易转化为环氧化物。