Reductive Fragmentation of Tetrazoles: Mechanistic Insights and Applications toward the Stereocontrolled Synthesis of 2,6-Polysubstituted Morpholines
作者:Edouard Duchamp、Benoit Deschênes Simard、Stephen Hanessian
DOI:10.1021/acs.orglett.9b01842
日期:2019.9.6
synthesize 2,6-di-, and 2,2',6-trisubstituted morpholines via the reduction of oxabicyclic tetrazoles under mild conditions is described. The reaction proved successful for a wide range of tetrazoles, including sterically encumbered ones harboring gem-substituents on tertiary carbon centers. The mechanism for the decades-old reduction of tetrazoles to secondary amines is elucidated.
描述了一种在温和条件下通过还原二氧杂环四唑合成2,6-二-和2,2',6-三取代的吗啉的新方法。事实证明,该反应可用于多种四唑,包括在叔碳中心上带有宝石取代基的空间受限四唑。阐明了将数十年来四唑还原为仲胺的机理。