Mizoroki–Heck reaction, catalysis by nitrogen ligand Pd complexes and activation of aryl bromides

Pd(quinoline-8-carboxylate)2 as a Low-Priced, Phosphine-Free Catalyst for Heck and Suzuki Reactions

“…The precipitate was filtered and dried under vacuum to afford a yellow solid which could not dissolve in the common organic solvents (69%). Elemental analysis calcd for C 20 H 12 Typical Experimental Procedure for the Heck Reaction. A mixture of phenyl bromide (5 mmol), styrene (7.5 mmol), 18 (0.5 × 10 -3 mmol), and K 2 CO 3 (10 mmol) in 10 mL of dry DMF was stirred under Ar at 130°C for the desired time.…”

Palladacycles in catalysis – a critical survey

“…e.g. [25] and references therein). Many chelating NN, NO and other such, complexes were successfully tried.…”

σ‐Alkylpalladium Intermediates in Intramolecular Heck Reactions:Isolation and Catalytic Activity

“…Among the reactions of iodobenzene with acrylates, compound 2 b is comparable to other catalytic systems such as sulfur- [18] or rhenium-containing [19] and imine- [20] or oximederived [21] palladacycles, even if there are other systems that perform better. [22] Similar catalytic activity was shown by iodo-A C H T U N G T R E N N U N G (indolyl)palladacycles 13 a and 13 b (Table 1, entries 4 and 5).…”