Cobalt-Catalyzed Hydroarylation of Alkynes through Chelation-Assisted C−H Bond Activation
摘要:
Ternary catalytic systems consisting of cobalt salts, phosphine ligands, and Grignard reagents promote addition of arylpyridines and imines to unactivated internal alkynes with high regio- and stereoselectivities. Deuterium-labeling experiments suggest that the reaction involves chelation-assisted oxidative addition of the aryl C-H bond to the cobalt center and insertion of the C-C triple bond into the Co-H bond, followed by reductive elimination of the resulting diorganocobalt species.
DOI:
10.1021/ja106814p
作为产物:
描述:
叔丁基二甲基氯硅烷 、 3-(吡啶-2-基)苯酚 以give 2-(3-tert-butyldimethylsilyloxyphenyl)pyridine according to scheme (3)的产率得到2-(3-((tert-butyldimethylsilyl)oxy)phenyl)pyridine
参考文献:
名称:
POLYMER LIGHT-EMITTING MATERIAL, METOHO FOR PRODUCING THE SAME, AND ORGANIC ELECTROLUMINESCENT DEVICE
POLYMER LIGHT-EMITTING MATERIAL, METOHO FOR PRODUCING THE SAME, AND ORGANIC ELECTROLUMINESCENT DEVICE
申请人:Tanaka Hiroshige
公开号:US20110309342A1
公开(公告)日:2011-12-22
Disclosed is a polymer light-emitting material for an organic electroluminescent device that displays excellent light-emitting performance and is applicable to a wet process. The polymer light-emitting material for an organic electroluminescent device is obtained by subjecting a thermoplastic resin having an Mw of 2,000-1,000,000 and containing a functional group in a unit constituting the backbone and a metal-containing phosphorescent dopant compound containing a reactive group capable of reacting with the said functional group to a polymer reaction so as to link a phosphorescent dopant moiety derived from the metal-containing phosphorescent dopant compound to the unit constituting the backbone of the thermoplastic resin. The content of the metal derived from the metal containing phosphorescent dopant compound in the said polymer light-emitting material is 0.001-20 wt %.
Polymer light-emitting material, method for producing the same, and organic electroluminescent device
申请人:Tanaka Hiroshige
公开号:US09290692B2
公开(公告)日:2016-03-22
Disclosed is a polymer light-emitting material for an organic electroluminescent device that displays excellent light-emitting performance and is applicable to a wet process. The polymer light-emitting material for an organic electroluminescent device is obtained by subjecting a thermoplastic resin having an Mw of 2,000-1,000,000 and containing a functional group in a unit constituting the backbone and a metal-containing phosphorescent dopant compound containing a reactive group capable of reacting with the said functional group to a polymer reaction so as to link a phosphorescent dopant moiety derived from the metal-containing phosphorescent dopant compound to the unit constituting the backbone of the thermoplastic resin. The content of the metal derived from the metal containing phosphorescent dopant compound in the said polymer light-emitting material is 0.001-20 wt %.
Ternary catalytic systems consisting of cobalt salts, phosphine ligands, and Grignard reagents promote addition of arylpyridines and imines to unactivated internal alkynes with high regio- and stereoselectivities. Deuterium-labeling experiments suggest that the reaction involves chelation-assisted oxidative addition of the aryl C-H bond to the cobalt center and insertion of the C-C triple bond into the Co-H bond, followed by reductive elimination of the resulting diorganocobalt species.