The present invention relates to a process for lithium exchange reactions comprising mixing at least two fluids in a microreactor having at least two injection points.
US8198487B2
申请人:——
公开号:US8198487B2
公开(公告)日:2012-06-12
Re‐Catalyzed Annulations of Weakly Coordinating
<i>N</i>
‐Carbamoyl Indoles/Indolines with Alkynes via C−H/C−N Bond Cleavage
作者:Yunhui Yang、Congyang Wang
DOI:10.1002/chem.201901518
日期:2019.6.21
Described herein are rhenium‐catalyzed [3+2] annulations of N‐carbamoyl indoles with alkynes via C−H/C−N bondcleavage, which provide rapid access to fused‐ring pyrroloindolone derivatives. For the first time, the weakly coordinating O‐directing group was successfully employed in rhenium‐catalyzed C−H activation reactions, enabled by the unique catalytic trio of Re2(CO)10, Me2Zn and ZnCl2. Mechanistic