Synthesis of 1-Substituted Cyclopropylamines via Formal Tertiary C<sub>sp<sup>3</sup></sub>–H Amination of Cyclopropanes
作者:Kui Liu、Shao-Jie Cheng、Gen Luo、Zhi-Shi Ye
DOI:10.1021/acs.orglett.1c03687
日期:2021.12.3
A novel and facile approach to synthesis of 1-substituted cyclopropylamines via phosphine-catalyzed formal tertiary Csp3–H amination of cyclopropanes was described. The indoles, pyrroles, imidazoles, uracils, 2-pyridone, pyrimidin-4(3H)-one, and phthalimide had been proven as good aminating partners. The present protocol features transition-metal-free, excellent regioselectivity, high-atom-economy
描述了一种通过膦催化环丙烷的形式叔 C sp 3 -H 胺化合成 1-取代环丙胺的新方法。吲哚类、吡咯类、咪唑类、尿嘧啶类、2-吡啶酮、pyrimidin-4(3 H)-one,邻苯二甲酰亚胺已被证明是良好的胺化伙伴。本协议具有无过渡金属、优异的区域选择性、高原子经济性、温和的反应条件和广泛的底物。该协议的实用性还可以通过生物活性分子的后期修饰、放大反应和发散衍生化来证明。值得注意的是,该方法已用于激素敏感性脂肪酶 (HSL) 抑制剂的正式合成。通过实验和计算研究阐明了机械方面。