described. In the presence of diphenylborinic acid (Ph2BOH) and an amine cocatalyst, heterocyclic nucleophiles such as 1,2,3- and 1,2,4-triazoles, substituted tetrazoles, and purine are activated toward selective N-functionalization. The scope of electrophilic partners includes enones, 2-vinylpyridine, phenyl vinyl sulfone, a dehydroalanine derivative, and epoxides. Mechanistic studies, including in situ
描述了一种用烯烃或
环氧化物亲电子试剂对周围的唑型杂环进行区域选择性N-烷基化的方法。在二苯基
硼酸 (Ph 2 BOH) 和胺助催化剂的存在下,杂环亲核试剂如 1,2,3-和
1,2,4-三唑、取代的
四唑和
嘌呤被活化为选择性N官能化。亲电子伙伴的范围包括烯酮、
2-乙烯基吡啶、
苯基乙烯基砜、脱氢丙
氨酸衍
生物和
环氧化物。讨论了机理研究,包括原位11 B NMR 光谱和动力学分析。