convergent method has been developed to construct a N-(dialkylamino)azacyclic system as a tetrasubstituted hydrazine via reductive alkylation of the corresponding hydrazone using sodium triacyloxyborohydride [NaBH(OCOR)3], which is tolerant of various substituents (e.g., phenol, conjugated olefin, amide, and thioamide) on the substrate and useful for organization of the N-aminoazacycle array.
已开发出一种新的高效且收敛的方法,该方法可通过使用三酰氧基
硼氢化钠[NaBH(OCOR)3 ]对相应的re进行还原性烷基化,将N-(二烷基
氨基)氮杂环状体系构建为四取代
肼,该方法可耐受各种取代基(例如底物上的
苯酚,共轭烯烃,酰胺和
硫代酰胺),可用于组织N-
氨基氮
杂环化合物阵列。