TETRAZINE-CONTAINING COMPOUNDS AND SYNTHETIC METHODS THEREOF
申请人:The Regents of the University of California
公开号:US20160223559A1
公开(公告)日:2016-08-04
Described herein are tetrazine derivatives and efficient synthetic methods of synthesis thereof using elimination-Heck cascade reaction. Provided herein is the synthesis of conjugated tetrazines from the tetrazine derivatives. Also provided herein are methods of use of the conjugated tetrazines as fluorogenic probes for live-cell imaging.
Rhodium(0) Metalloradicals in Binuclear C−H Activation
作者:Florian F. Puschmann、Hansjörg Grützmacher、Bas de Bruin
DOI:10.1021/ja909022p
日期:2010.1.13
rhodium(0) metalloradical capable of binuclear activation of an aromatic C-H bond of PPh(3) is disclosed. Kinetic measurements and density functional theory calculations reveal a binuclear mechanism: two metalloradicals add to a 'double bond' of the aromatic substrate while approaching the rate limiting C-H activation step (TS). Such aromatic C-H bond activation with Rh(0) metalloradicals potentially
作者:Florian Frank Puschmann、Jeffrey Harmer、Daniel Stein、Heinz Rüegger、Bas de Bruin、Hansjörg Grützmacher
DOI:10.1002/anie.200903201
日期:2010.1.8
Radical changes: One single P‐Rh‐P angle determines whether the odd electron in the paramagnetic complex [Rh(trop2PPh)(PPh3)] is delocalized over the whole molecule (see picture, blue) or is localized on the PRh unit (red). The two energetically almost degenerate electromers exist in a fast equilibrium, and the “red” complex has the highest spin density at Rh of all low valent Rh complexes observed