化学
电泳剂
亚胺离子
位阻效应
催化作用
阳离子聚合
表面改性
乙醚
试剂
药物化学
艾伦
组合化学
有机化学
物理化学
作者
Yidong Wang,Sarah G. Scrivener,Xiao‐Dong Zuo,Ruihan Wang,Philip N. Palermo,Erin K. Murphy,Austin C. Durham,Yi‐Ming Wang
摘要
An iron-catalyzed C–H functionalization of simple monosubstituted allenes is reported. An efficient protocol for this process was made possible by the use of a newly developed electron-rich and sterically hindered cationic cyclopentadienyliron dicarbonyl complex as the catalyst and N-sulfonyl hemiaminal ether reagents as precursors to iminium ion electrophiles. Under optimized conditions, the use of a mild, functional-group-tolerant base enabled the conversion of a range of monoalkyl allenes to their allenylic sulfonamido 1,1-disubstituted derivatives, a previously unreported and contrasteric regiochemical outcome for the C–H functionalization of electronically unbiased and directing-group-free allenes.
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