caa a22 4500 463253434 CHVBK 20180405153347.0 cr unu---uuuuu 170326e20071001xx s 000 0 eng 10.1007/s10562-007-9145-2 doi (NATIONALLICENCE)springer-10.1007/s10562-007-9145-2 A novel type of chiral titanium phosphonates and hybrid titanium phosphonates for heterogeneous asymmetric catalysis [Elektronische Daten] [Yeling Ji, Xuebing Ma, Xinjun Wu, Ning Wang, Qiang Wang, Xilan Zhou] (1R, 2S)-(−)-2-amino-1, 2-diphenylethanol and (1S, 2R)-(+)-2-amino-1, 2-diphenylethanol had been immobilized on the layered titanium phosphonates 4a-d and hybrid titanium phosphonates 5a-c in spheroid form with interlayer space 20.845-19.407Å which can be used as heterogeneous catalysts in the enantioseletive addition of diethylzinc to benzaldehyde to obtain optically active (R)-or (S)-1-phenylpropan-1-ol for the first time. It was shown that the titanium phosphonate 4a led to active heterogeneous catalysis for asymmetric additions of diethylzinc to benzaldehydes in 88.5% yield and ee value of up to 40.8% which decreased at 16% ee lower than corresponding chiral ligand in homogeneous asymmetric catalysis. AFM showed that the distribution of 1,2-dipenyl-2-aminoethanol organic moieties on the surface of titanium phosphonates irregularly lined like flow mark. Springer Science+Business Media, LLC, 2007 hybrid nationallicence immobilized nationallicence titanium phosphonate nationallicence heterogeneous enantioseletive addition nationallicence Ji Yeling College of Chemistry and Chemical Engineering, Southwest University, 400715, Chongqing, P.R. China aut Ma Xuebing College of Chemistry and Chemical Engineering, Southwest University, 400715, Chongqing, P.R. China aut Wu Xinjun College of Chemistry and Chemical Engineering, Southwest University, 400715, Chongqing, P.R. China aut Wang Ning College of Chemistry and Chemical Engineering, Southwest University, 400715, Chongqing, P.R. China aut Wang Qiang College of Chemistry and Chemical Engineering, Southwest University, 400715, Chongqing, P.R. China aut Zhou Xilan College of Chemistry and Chemical Engineering, Southwest University, 400715, Chongqing, P.R. China aut Catalysis Letters Springer US; http://www.springer-ny.com 118/3-4(2007-10-01), 187-194 1011-372X 118:3-4<187 2007 118 10562 https://doi.org/10.1007/s10562-007-9145-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10562-007-9145-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ji Yeling College of Chemistry and Chemical Engineering, Southwest University, 400715, Chongqing, P.R. China aut NATIONALLICENCE 700 1- Ma Xuebing College of Chemistry and Chemical Engineering, Southwest University, 400715, Chongqing, P.R. China aut NATIONALLICENCE 700 1- Wu Xinjun College of Chemistry and Chemical Engineering, Southwest University, 400715, Chongqing, P.R. China aut NATIONALLICENCE 700 1- Wang Ning College of Chemistry and Chemical Engineering, Southwest University, 400715, Chongqing, P.R. China aut NATIONALLICENCE 700 1- Wang Qiang College of Chemistry and Chemical Engineering, Southwest University, 400715, Chongqing, P.R. China aut NATIONALLICENCE 700 1- Zhou Xilan College of Chemistry and Chemical Engineering, Southwest University, 400715, Chongqing, P.R. China aut NATIONALLICENCE 773 0- Catalysis Letters Springer US; http://www.springer-ny.com 118/3-4(2007-10-01), 187-194 1011-372X 118:3-4<187 2007 118 10562 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer