TY - JOUR
T1 - Construction of pseudo-heterochiral and homochiral Di-μ- oxotitanium(Schiff base) dimers and enantioselective epoxidation using aqueous hydrogen peroxide
AU - Matsumoto, Kazuhiro
AU - Sawada, Yuji
AU - Saito, Bunnai
AU - Sakai, Ken
AU - Katsuki, Tsutomu
PY - 2005/8/5
Y1 - 2005/8/5
N2 - (Chemical Equation Presented) Salen's lot: Meerwein-Ponndorf-Verley reduction of [Ti(salen) (OiPr)2] (salen = bis(salicylidene) ethylenediaminato) complexes followed by treatment with water leads to the synthesis of pseudo-heterochiral and homochiral di-μ-oxotitanium dimers. These dimers, in particular (aR,S,Δ,aR,S,Δ)-dimer 1, efficiently catalyze the epoxidation of simple olefins using aqueous hydrogen peroxide (see scheme) with ee values up to 99% and turnover numbers up to 4600.
AB - (Chemical Equation Presented) Salen's lot: Meerwein-Ponndorf-Verley reduction of [Ti(salen) (OiPr)2] (salen = bis(salicylidene) ethylenediaminato) complexes followed by treatment with water leads to the synthesis of pseudo-heterochiral and homochiral di-μ-oxotitanium dimers. These dimers, in particular (aR,S,Δ,aR,S,Δ)-dimer 1, efficiently catalyze the epoxidation of simple olefins using aqueous hydrogen peroxide (see scheme) with ee values up to 99% and turnover numbers up to 4600.
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U2 - 10.1002/anie.200501318
DO - 10.1002/anie.200501318
M3 - Article
C2 - 15999379
AN - SCOPUS:23744457569
VL - 44
SP - 4935
EP - 4939
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
SN - 1433-7851
IS - 31
ER -