Biphenyl-Based Diaminophosphine Oxides as Air-Stable Preligands for the Nickel-Catalyzed Kumada-Tamao-Corriu Coupling of Deactivated Aryl Chlorides, Fluorides, and Tosylates
couple: Cooperative bimetallic activation of CF and CO bonds gave rise to easy coupling with arylfluorides and tosylates. Novel air‐ and moisture‐stable diaminophosphine oxides derived from 1,1′‐biphenyl‐2,2′‐diamine proved to be versatile preligands for the nickel‐catalyzed cross‐coupling of aryl Grignard reagents with a variety of deactivated aryl chlorides, fluorides, and tosylates (see scheme)
Seven-membered heterocyclic carbenes and their metal complexes
申请人:Stahl S. Shannon
公开号:US20060229448A1
公开(公告)日:2006-10-12
Disclosed are carbenes of the general formula:
and including salts thereof, and metal complexes thereof. The carbenes are useful in any reaction where carbenes and carbene-metal complexes are used. The carbenes disclosed herein are particularly useful in asymmetric catalysis.
SEVEN-MEMBERED HETEROCYCLIC CARBENES AND THEIR METAL COMPLEXES
申请人:Stahl Shannon S.
公开号:US20100228024A1
公开(公告)日:2010-09-09
Disclosed are carbenes of the general formula:
and including salts thereof, and metal complexes thereof. The carbenes are useful in any reaction where carbenes and carbene-metal complexes are used. The carbenes disclosed herein are particularly useful in asymmetric catalysis.