- Celal Bayar Üniversitesi Fen Bilimleri Dergisi
- Cilt: 19 Sayı: 3
- Palladium/1,3-bis(ferrocenylmethy)imidazolinium chloride catalyst for Suzuki cross-coupling reaction...
Palladium/1,3-bis(ferrocenylmethy)imidazolinium chloride catalyst for Suzuki cross-coupling reactions
Authors : Mehmet Günaltay, Hülya Avci Özbek, Funda Demirhan
Pages : 211-218
Doi:10.18466/cbayarfbe.1261392
View : 44 | Download : 34
Publication Date : 2023-09-30
Article Type : Research
Abstract :We describe here the first results of catalytic performance of in situ prepared [Pd(O2CCH3)2] / 1,3-bis(ferrocenylmethy)imidazolinium chloride involving a saturated imidazole ring were successfully employed to Suzuki cross-coupling reactions of different aryl bromides (bromobenzene, 2-bromobenzonitrile, 2-bromotoluene, p-bromobenzaldehyde, p-bromoacetophenone, p-bromoanisole, p-bromotoluene and p-bromobenzotrifluoride) with phenylboronic acid under the optimum conditions. Optimum conditions were choosed, as 24 h, 80 oC, K2CO3 as base, dioxane as solvent, 1,3-bis(ferrocenylmethy)imidazolinium chloride as auxiliary ligand. Under these optimum conditions, 2- bromobenzonitrile, p-bromoacetophenone and p- bromobenzaldehyde react with phenyl boronic acid in moderate yields 57%, 50%, and 46% respectively. Catalytic experiments showed that [Pd(O2CCH3)2] / 1,3-bis(ferrocenylmethy)imidazolinium chloride catalytic system was moderately effficent in the Suzuki cross coupling reaction of aryl bromides in dioxane.Keywords : Ferrocene, 1, 3-bis(ferrocenylmethy)imidazolinium salt, Palladium, Suzuki