HYDROGENATION OF ACETOPHENONE AND ITS DERIVATIVES WITH 2-PROPANOL USING AMINOMETHYLPHOSPHINE-RUTHENIUM CATALYSIS
Küçük Resim Yok
Tarih
2010
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Taylor & Francis Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The reaction of 3'-aminopropyltriethoxysilane with the phosphonium salt ([Ph2P(CH2OH)(2)]Cl) gives an aminomethylphosphine-type ligand ((CH3CH2O)(3)Si(CH2)(3)N(CH2PPh2)(2)). Reaction of the ligand ((CH3CH2O)(3)Si(CH2)(3)N(CH2PPh2)(2)) with silica gives silica supported aminomethylphosphine ligand (SiO2)-O-Si(CH2)(3)N(CH2PPh2)(2)). The ligands were refluxed with [RuCl2(p-cymene)](2) in toluene to give [RuCl2((CH3CH2O)(3)Si(CH2)(3)N(CH2PPh2)(2))] and silica-supported SiO2)-O-[RuCl2((Si(CH2)(3)N(CH2PPh2)(2))(2)] complex, respectively. The catalytic studies show that the complexes [RuCl2((CH3CH2O)(3)Si(CH2)(3)N(CH2PPh2)(2))] and SiO2)-O-[RuCl2((CH3CH2O)(3)Si(CH2)(3)N(CH2PPh2)(2))(2)] are very active catalysts for the transfer hydrogenation of acetophenone by 2-propanol in basic media. The best yield was observed in hydrogenation of m-methoxy acetophenone (95%) with catalyst [RuCl2((CH3CH2O)(3)Si(CH2)(3)N(CH2PPh2)(2))].
Açıklama
Anahtar Kelimeler
Acetophenone, aminomethylphosphine, hydrogenation, silica
Kaynak
Phosphorus Sulfur and Silicon and The Related Elements
WoS Q Değeri
Q4
Scopus Q Değeri
Q4
Cilt
185
Sayı
1
