The new complexes [Ru(NO)(PPh3)]2(h2-Cm)(m=60 1 or 70 2) have been prepared by heating a solution of C60(or C70) with [Ru(NO)2(PPh3)2] in toluene. They have been characterized by elemental analysis, IR, UV/VIS, XPS, ...The new complexes [Ru(NO)(PPh3)]2(h2-Cm)(m=60 1 or 70 2) have been prepared by heating a solution of C60(or C70) with [Ru(NO)2(PPh3)2] in toluene. They have been characterized by elemental analysis, IR, UV/VIS, XPS, 13C and 31P NMR spectroscopy. The photovaltaic effect for the new compounds has been studied.展开更多
The new polydentate mixed-N,P,O chiral ligands have been synthesized by the condensation of bis（o-formylphenyl）- phenylphosphane and R-phenylglycinol in CHCl_3,and fully characterized by IR,NMR and EIMS spectra.Thes...The new polydentate mixed-N,P,O chiral ligands have been synthesized by the condensation of bis（o-formylphenyl）- phenylphosphane and R-phenylglycinol in CHCl_3,and fully characterized by IR,NMR and EIMS spectra.These ligands were employed with a simple Ni complex Ni（PPh_s）_2Cl_2 in situ as catalytic systems for asymmetric transfer hydrogenation of ketones,and the corresponding optical alcohols were obtained with up to 84%ee under mild conditions.展开更多
Novel chiral tetraaza ligands（R）-N,N′-bis[2-（piperidin-1-yl）benzylidene]propane-l,2-diamine 6 and（S）-N-[2-（piperidin-l- yl）benzylidene]-3-{[2-（piperidin-1-yl）benzylidene]amino}-alanine sodium salt 7 have be...Novel chiral tetraaza ligands（R）-N,N′-bis[2-（piperidin-1-yl）benzylidene]propane-l,2-diamine 6 and（S）-N-[2-（piperidin-l- yl）benzylidene]-3-{[2-（piperidin-1-yl）benzylidene]amino}-alanine sodium salt 7 have been synthesized and fully characterized by NMR,IR,MS and CD spectra.The catalytic property of the ligands was investigated in Ir-catalyzed enantioselective transfer hydrogenation of ketones.The corresponding optical active alcohols were obtained with high yields and moderate ees under mild reaction conditions.展开更多
基金support of this work by the Doctor programe of Higher Education of China(No.98038410)Natural Science Foundation of Fujian(No.E0110001)Self-select program of Xiamen University.
文摘The new complexes [Ru(NO)(PPh3)]2(h2-Cm)(m=60 1 or 70 2) have been prepared by heating a solution of C60(or C70) with [Ru(NO)2(PPh3)2] in toluene. They have been characterized by elemental analysis, IR, UV/VIS, XPS, 13C and 31P NMR spectroscopy. The photovaltaic effect for the new compounds has been studied.
基金the National Natural Science Foundation of China(No21173176)the Natural Science Foundation of Guangxi Province of China(No0991016)for the financial support of this work
文摘The new polydentate mixed-N,P,O chiral ligands have been synthesized by the condensation of bis（o-formylphenyl）- phenylphosphane and R-phenylglycinol in CHCl_3,and fully characterized by IR,NMR and EIMS spectra.These ligands were employed with a simple Ni complex Ni（PPh_s）_2Cl_2 in situ as catalytic systems for asymmetric transfer hydrogenation of ketones,and the corresponding optical alcohols were obtained with up to 84%ee under mild conditions.
基金the National Natural Science Foundation of China(Nos.20423002,20923004,and 21173176)Program for Changjiang Scholars and Innovative Research Team in University(No.IRT1036)State Key Laboratory of Physical Chemistry of Solid Surfaces for financial support
文摘Novel chiral tetraaza ligands（R）-N,N′-bis[2-（piperidin-1-yl）benzylidene]propane-l,2-diamine 6 and（S）-N-[2-（piperidin-l- yl）benzylidene]-3-{[2-（piperidin-1-yl）benzylidene]amino}-alanine sodium salt 7 have been synthesized and fully characterized by NMR,IR,MS and CD spectra.The catalytic property of the ligands was investigated in Ir-catalyzed enantioselective transfer hydrogenation of ketones.The corresponding optical active alcohols were obtained with high yields and moderate ees under mild reaction conditions.
