Diastereoselectively Complementary C–H Functionalization Enables Access to Structurally and Stereochemically Diverse 2,6-Substituted Piperidines
作者:Gang Wang、Ying Mao、Lei Liu
DOI:10.1021/acs.orglett.6b03372
日期:2016.12.16
The preparation of 2,6-substituted piperidine derivatives through diastereoselective C–H functionalization of corresponding nitrogen heterocycles represents an appealing protocol and yet remains a formidable challenge. Here, we describe a stereochemically complementary oxidative C–H functionalization of N-carbamoyl tetrahydropyridines with a wide variety of building blocks, providing either the cis-
通过相应的氮杂环的非对映选择性CH官能团制备2,6-取代的哌啶衍生物是一个有吸引力的方案,但仍然是一个艰巨的挑战。在这里,我们描述了N-氨基甲酰基四氢吡啶的立体化学互补氧化C–H功能化,具有多种结构单元,可为顺式-或反式-2,6-取代的哌啶提供多种功能模式。不含金属的温和工艺具有极佳的区域选择性和非对映选择性,以及对官能团的耐受性。还描述了天然产物和类似物合成中的合成用途。