Late Stage Functionalization of Secondary Amines via a Cobalt-Catalyzed Electrophilic Amination of Organozinc Reagents
作者:Simon Graßl、Yi-Hung Chen、Clémence Hamze、Carl Phillip Tüllmann、Paul Knochel
DOI:10.1021/acs.orglett.8b03787
日期:2019.1.18
A general preparation of polyfunctional hydroxylamine benzoates from the corresponding secondary amines is reported. This convenient synthesis allows the setup of a late-stage functionalization of various secondary amines, including pharmaceuticals and peptidic derivatives. Thus, a cross-coupling of hydroxylamine benzoates with various alkyl-, aryl-, and heteroaryl-zinc chlorides in the presence of
据报道,由相应的仲胺制备多官能羟胺苯甲酸酯的一般方法。这种方便的合成方法可以建立各种仲胺(包括药物和肽衍生物)的后期官能化功能。因此,在5 mol%CoCl 2(25°C,2 h)存在下,羟胺苯甲酸酯与各种烷基氯化锌,芳基氯化锌和杂芳基氯化锌的交叉偶联提供了一系列多官能叔胺。该方法用于制备戊氟哌啶和吉哌隆。