TY - JOUR
T1 - Heterogeneous transfer hydrogenation over mesoporous SBA-15 co-modified by anionic sulfonate and cationic Ru(III) complex
AU - Chen, Sheng Jie
AU - You, Hong Xing
AU - Vo-Thanh, Giang
AU - Liu, Ye
PY - 2013/6
Y1 - 2013/6
N2 - Via ion-pair electrostatic interactions with sulfonate anions, the phosphine-ligated Ru(III) complex cations of [RuIIICl 4(L)2]+ (L = 1-butyl-2-(diphenylphosphino)-3- methylimidazolium) were successfully immobilized into a sulfonated SBA-15 framework, leading to the formation of the cationic Ru(III) complex and anionic sulfonate co-modified SBA-15 material (referred to as Ru-SO3-SBA-15). This material was characterized by powder X-ray diffraction (PXRD), transmission electron microscopy (TEM), N2 adsorption-desorption isotherms, FT-IR, and elemental analysis techniques. As a heterogeneous catalyst, Ru-SO3-SBA-15 exhibited comparable activity and selectivity to the parent homogeneous catalyst [RuIIICl4(L) 2]PF6 in transfer hydrogenation of ketones. However, as a result of the limited durability of Ru-SO3-SBA-15 in strongly alkaline environments at high temperature, the activity of Ru-SO 3-SBA-15 could not be maintained during subsequent recycled uses.
AB - Via ion-pair electrostatic interactions with sulfonate anions, the phosphine-ligated Ru(III) complex cations of [RuIIICl 4(L)2]+ (L = 1-butyl-2-(diphenylphosphino)-3- methylimidazolium) were successfully immobilized into a sulfonated SBA-15 framework, leading to the formation of the cationic Ru(III) complex and anionic sulfonate co-modified SBA-15 material (referred to as Ru-SO3-SBA-15). This material was characterized by powder X-ray diffraction (PXRD), transmission electron microscopy (TEM), N2 adsorption-desorption isotherms, FT-IR, and elemental analysis techniques. As a heterogeneous catalyst, Ru-SO3-SBA-15 exhibited comparable activity and selectivity to the parent homogeneous catalyst [RuIIICl4(L) 2]PF6 in transfer hydrogenation of ketones. However, as a result of the limited durability of Ru-SO3-SBA-15 in strongly alkaline environments at high temperature, the activity of Ru-SO 3-SBA-15 could not be maintained during subsequent recycled uses.
KW - Green chemistry
KW - Heterogeneous catalysis
KW - Hydrogen transfer
KW - Ion-pair electrostatic interaction
KW - Ruthenium complexes
UR - https://www.scopus.com/pages/publications/84877785501
U2 - 10.1007/s00706-012-0889-z
DO - 10.1007/s00706-012-0889-z
M3 - 文章
AN - SCOPUS:84877785501
SN - 0026-9247
VL - 144
SP - 851
EP - 858
JO - Monatshefte fur Chemie
JF - Monatshefte fur Chemie
IS - 6
ER -