Iron-Catalyzed Contrasteric Functionalization of Allenic C(sp<sup>2</sup>)–H Bonds: Synthesis of α-Aminoalkyl 1,1-Disubstituted Allenes
作者:Yidong Wang、Sarah G. Scrivener、Xiao-Dong Zuo、Ruihan Wang、Philip N. Palermo、Ethan Murphy、Austin C. Durham、Yi-Ming Wang
DOI:10.1021/jacs.1c07512
日期:2021.9.22
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
报道了简单的单取代丙二烯的铁催化 C-H 官能化。通过使用新开发的富电子和空间位阻阳离子环戊二烯基二羰基络合物作为催化剂和N-磺酰基半胺基醚试剂作为亚胺离子亲电试剂的前体,使该过程的有效方案成为可能。在优化条件下,使用温和的、官能团耐受的碱基能够将一系列单烷基丙二烯转化为其烯属磺酰胺基 1,1-二取代衍生物,这是以前未报道的、对比鲜明的 C-H 官能化区域化学结果。电子无偏和无导向基团的丙二烯。