Directed Ruthenium‐Catalyzed C(
<i>sp</i>
<sup>3</sup>
)H α‐Alkylation of Cyclic Amines Using Dioxolane‐Protected Alkenones
作者:Artem A. Kulago、Ben F. Van Steijvoort、Emily A. Mitchell、Lieven Meerpoel、Bert U. W. Maes
DOI:10.1002/adsc.201400117
日期:2014.5.5
catalytic system for ruthenium‐catalyzedC(sp3)Hα‐alkylation of piperidines with dioxolane‐protectedalkenones is reported. Dioxolane protection of the ketone proved crucial to obtain alkylation products. A diverse set of highly substituted piperidines was readily prepared in moderate to good yields via this methodology from easily accessible starting materials (C‐2, C‐3 and C‐4 substituted piperidines)