Diaryldiazoketones as Effective Carbene Sources for Highly Selective Rh(II)-Catalyzed Intermolecular C–H Functionalization
作者:Terrence-Thang H. Nguyen、Aaron T. Bosse、Duc Ly、Camila A. Suarez、Jiantao Fu、Kristin Shimabukuro、Djamaladdin G. Musaev、Huw M. L. Davies
DOI:10.1021/jacs.3c14552
日期:2024.3.27
A novel donor/acceptor carbene intermediate has been developed using diaryldiazoketones as carbene precursors. In the presence of the chiral dirhodium catalyst, Rh2(S-TPPTTL)4, diaryldiazoketones undergo highly regio-, stereo-, and diastereoselective C–H functionalization of activated and unactivated secondary and tertiary C–H bonds. Computational studies revealed that the arylketo group behaves differently
使用二芳基重氮酮作为卡宾前体开发了一种新型供体/受体卡宾中间体。在手性二铑催化剂 Rh 2 ( S -TPPTTL) 4存在下,二芳基重氮酮对活化和未活化的二级和三级 C-H 键进行高度区域选择性、立体选择性和非对映选择性 C-H 官能化。计算研究表明,芳酮基团的行为与羧酸酯受体基团不同,因为芳基酮基团的方向预先决定了卡宾的哪个面将受到攻击。