Preparation of Tertiary Amines by the Reaction of Iminium Ions Derived from Unsymmetrical Aminals with Zinc and Magnesium Organometallics
作者:Veronika Werner、Mario Ellwart、Andreas J. Wagner、Paul Knochel
DOI:10.1021/acs.orglett.5b00801
日期:2015.4.17
We report a convenient one-pot preparation of polyfunctional tertiary amines, including various biorelevant phenethylamines or ephedrine derivatives, via the reaction of new functionalized iminium ions with a variety of zinc and magnesium organometallic reagents. These iminium ions were generated from unsymmetrical aminals, obtained by the in situ addition of various amides to Tietze’s iminium salt
我们报告了一种方便的一锅法制备的多官能叔胺,包括各种生物相关的苯乙胺或麻黄碱衍生物,它们通过新型功能化的亚胺离子与各种锌和镁有机金属试剂的反应而制得。这些亚胺离子是由不对称的缩醛生成的,这些缩醛是通过在Tietze的亚胺盐[Me 2 NCH 2 + CF 3 COO – ]中原位添加各种酰胺而获得的。通过分子内Heck反应将通过该方法制备的官能化苯胺转化为喹啉烷。