Titanium–Salan-Catalyzed Asymmetric Epoxidation with Aqueous Hydrogen Peroxide as the Oxidant

2006 ◽  
Vol 118 (21) ◽  
pp. 3558-3560 ◽  
Author(s):  
Yuji Sawada ◽  
Kazuhiro Matsumoto ◽  
Shoichi Kondo ◽  
Hisayuki Watanabe ◽  
Tomoyuki Ozawa ◽  
...  
2017 ◽  
Vol 8 (5) ◽  
pp. 3660-3667 ◽  
Author(s):  
Olaf Cussó ◽  
Michael W. Giuliano ◽  
Xavi Ribas ◽  
Scott J. Miller ◽  
Miquel Costas

The combination of peptides and a chiral iron coordination complex catalyzes high yield highly asymmetric epoxidation with aqueous hydrogen peroxide.


Synfacts ◽  
2006 ◽  
Vol 2006 (8) ◽  
pp. 0804-0804
Author(s):  
T. Katsuki ◽  
Y. Sawada ◽  
K. Matsumoto ◽  
S. Kondo ◽  
H. Watanabe ◽  
...  

2008 ◽  
Vol 80 (5) ◽  
pp. 1071-1077 ◽  
Author(s):  
Kazuhiro Matsumoto ◽  
Yuji Sawada ◽  
Tsutomu Katsuki

Ti(salan) complexes were found to be efficient catalysts for asymmetric epoxidation with aqueous hydrogen peroxide as the oxidant. In the presence of pH 7.4 phosphate buffer, the reaction of various conjugate olefins proceeded smoothly to afford the corresponding epoxides in high yield with high enantioselectivity, even on a multigram scale. Ti(salan) complexes could be prepared from Ti(OiPr)4 and the corresponding salan ligand and directly used without isolation and purification.


ChemInform ◽  
2006 ◽  
Vol 37 (39) ◽  
Author(s):  
Yuji Sawada ◽  
Kazuhiro Matsumoto ◽  
Shoichi Kondo ◽  
Hisayuki Watanabe ◽  
Tomoyuki Ozawa ◽  
...  

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