Rhodium(III)‐Catalyzed Synthesis of Skipped Enynes via C(sp
<sup>3</sup>
)–H Alkynylation of Terminal Alkenes
作者:Franco Della‐Felice、Margherita Zanini、Xiaoming Jie、Eric Tan、Antonio M. Echavarren
DOI:10.1002/anie.202014877
日期:2021.3.8
The RhIII‐catalyzed allylic C−H alkynylation of non‐activated terminal alkenes leads selectively to linear 1,4‐enynes at room‐temperature. The catalytic system tolerates a wide range of functional groups without competing functionalization at other positions. Similarly, the vinylic C−H alkynylation of α,β‐ and β,γ‐ unsaturated amides gives conjugated Z‐1,3‐enynes and E‐enediynes.
在室温下,Rh III催化的未活化末端烯烃的烯丙基CH炔基化反应选择性地导致线性1,4-炔烃。催化体系可耐受多种官能团,而不会在其他位置竞争官能团。类似地,α,β-和β,γ-不饱和酰胺的乙烯基C-H炔基化反应得到共轭的Z-1,3-烯炔和烯二炔。