1140222-69-0Relevant articles and documents
N4-tetradentate dicarboxyamidate/dipyridyl palladium complexes as robust catalysts for the Heck reaction of deactivated aryl chlorides
Srinivas, Pottabathula,Likhar, Pravin R.,Maheswaran, Hariharasarma,Sridhar, Balasubramanian,Ravikumar, Krishnan,Kantam, Mannepalli Lakshmi
, p. 1578 - 1581 (2009)
The utility of palladium(II) complexes of tetradentate dicarboxyamide/ dipyridyl ligands as catalysts for the Heck reaction of deactivated aryl chlorides and olefins was studied. The square-planar palladium complexes were prepared by treatment of the ligands with Pd(OAc)2 in THF at room temperature. Thermogravimetric analysis show that both the palladium complexes have high thermal stability up to 350°C. LiOH·H2O has a pronounced effect on the product yield, while a yield of 74% is obtained by using DMA as a solvent at 160°C in 44 h. The reactions of less reactive aryl chlorides such as 4-chloroanisole, 4-chlorotoluene, and chlorobenzene with styrene and 4-methylstyrene, proceed smoothly and provide good yields. Both palladium complexes are found to be efficient and active for the Heck reaction of deactivated aryl chlorides and olefins.
