作者:Michał Barbasiewicz、Karolina Marciniak、Michał Fedoryński
DOI:10.1016/j.tetlet.2006.03.176
日期:2006.6
Phase transfer alkylations of phenylacetonitrile derivatives carried out in the presence of 60–75% aqueous KOH, instead of the typical 50% NaOH, provide substantial improvements in the overall yields and purity of products. Reactions with simple secondary alkyl halides, as well as cycloalkylations with 1,2- and 1,3-dihaloalkanes proceed with good yields. Increasing the concentration of base diminishes
在60-75%的KOH水溶液(而不是典型的50%的NaOH)存在下进行的苯乙腈衍生物的相转移烷基化可显着提高产品的总收率和纯度。与简单的仲烷基卤化物的反应以及与1,2-和1,3-二卤代烷烃的环烷基化以良好的收率进行。增加碱的浓度减少了竞争性β-消除过程副产物的形成。