A Proline-Squaraine Ligand Framework (Pro-SqEB) for Stereoselective Rhodium(II)-Catalyzed Cyclopropanations

被引：3

作者：

Bacher, Emily P. ^{[1
]}

Twiringiyimana, Raissa ^{[1
]}

Rodriguez, Kevin X. ^{[1
]}

Wilson, Renita A. ^{[1
]}

Bodnar, Alexandra K. ^{[1
]}

O'Connell, Ryan ^{[1
]}

Toni, Tiffany A. ^{[1
]}

Eckert, Kaitlyn E. ^{[1
]}

Wiest, Olaf ^{[1
]}

Ashfeld, Brandon L. ^{[1
]}

机构：

[1] Univ Notre Dame, Dept Chem & Biochem, Notre Dame, IN 46556 USA

来源：

ORGANIC LETTERS | 2023年 / 25卷 / 45期

基金：

美国国家科学基金会;

关键词：

DYES;

D O I：

10.1021/acs.orglett.3c03344

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A proline-squaraine ligand (Pro-SqEB) that demonstrates high levels of stereoselectivity in olefin cyclopropanations when anchored to a Rh2 II scaffold is introduced. High yields and enantioselectivities were achieved in the cyclopropanation of alkenes with diazo compounds in the presence of Rh-2(Pro-SqEB)(4). Notably, the unique electronic and steric design of this catalyst enabled the use of polar solvents that are otherwise incompatible with most Rh(II )complexes.

引用

页码：8156 / 8161

页数：6