DMAP-Catalyzed [4 + 2] Cycloaddition of <i>α</i>
,<i>β</i>
-Unsaturated Carboxylic Acids with Ketones for Synthesis of <i>α</i>
,<i>β</i>
-Unsaturated <i>δ</i>
-Lactones
作者:Jinghai Jin、Qinchang Xu、Weiping Deng
DOI:10.1002/cjoc.201600929
日期:2017.4
The DMAP‐catalyzed [4 + 2] cycloaddition of α,β‐unsaturated carboxylic acids with ketones furnishing α,β‐unsaturated δ‐lactones in good yields (up to 80%) is described, which is the first example of remote γ‐C(sp3)‐H activation of α,β‐unsaturated carboxylic acids facilitated by DMAP, a pyridine‐based catalyst. Copyright © 2017 John Wiley & Sons, Ltd.
的DMAP催化[4 + 2]环加成α,β不饱和羧酸与酮家具α,β不饱和δ内酯以良好的收率(80%)中描述,其是遥控器的第一个例子γ -吡啶基催化剂DMAP促进了α,β-不饱和羧酸的C(sp 3)-H活化。版权所有©2017 John Wiley&Sons,Ltd.