Isomerization of (.pi.-allyl)palladium complexes via nucleophilic displacement by palladium(0). A common mechanism in palladium(0)-catalyzed allylic substitution

Autor: Jan-E. Bäckvall, Kenneth L. Granberg
Rok vydání: 1992
Předmět:
Zdroj: Journal of the American Chemical Society. 114:6858-6863
ISSN: 1520-5126
0002-7863
Popis: Treatment of (π-allyl)palladium complexes such as 6 and 9 with Pd(PPh 3 ) 4 leads to rapid isomerization at -15 o C in tetrahydrofuran and other solvents. At 0 o C and in the presence of more than 2 equiv of triphenylphosphine per palladium, the phosphine attacks the π-allyl group to give allylic phosphonium salts 7 with concomitant formation of a palladium(0)-phosphine complex, and isomerization of 6 is observed
Databáze: OpenAIRE