Halogenation Reactions of Alkyl Alcohols Employing Methyl Grignard Reagents
作者:Nadia Hirbawi、Patricia C. Lin、Elizabeth R. Jarvo
DOI:10.1021/acs.joc.2c01590
日期:2022.9.16
iodides and bromides. We establish that Grignard reagents can convert alkyl mesylates into alkyl halides, as well as be employed in a one-pot halogenation reaction starting from alcohols, which proceed through mesylate intermediates. The halogenation reaction is confirmed to occur by an SN2 pathway with inversion of configuration and is demonstrated to be efficient on multi-gram scale.
格氏试剂通常用作碳负离子等价物。在此,我们报告了格氏试剂作为卤化物亲核试剂形成烷基碘和溴化物的例子。我们确定格氏试剂可以将甲磺酸烷基酯转化为卤代烷,也可以用于以醇为原料、通过甲磺酸酯中间体进行的一锅卤化反应。卤化反应被证实是通过具有构型反转的S N 2 途径发生的,并且被证明在多克规模上是有效的。