Catalytic enantioselective epoxidation of unfunctionalized olefins: Utility of a Ti(Oi-Pr)4-salan-H2O2 system

Synlett

Volumn , Issue 20, 2006, Pages 3545-3547

  Matsumoto, Kazuhiro ^a   Sawada, Yuji ^a   Katsuki, Tsutomu ^a  

^a KYUSHU UNIVERSITY   (Japan)

Author keywords

Asymmetric catalysis; Epoxidations; Hydrogen peroxide; Salan ligand; Titanium

Indexed keywords

ALKENE DERIVATIVE; HYDROGEN PEROXIDE; STYRENE; TITANIUM;

ARTICLE; ASYMMETRIC CATALYSIS; CHEMICAL ANALYSIS; CHEMICAL REACTION; CHEMICAL STRUCTURE; ENANTIOSELECTIVITY; EPOXIDATION; HIGH PERFORMANCE LIQUID CHROMATOGRAPHY;

EID: 33846513440     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2006-956496     Document Type: Article

References (19)

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17. We have already reported that the in situ prepared titanium-salan complex was equally efficient to the isolated di-ì-ï÷ï titanium-salan complex (1, ref. 4).
18. Compound 2e: 47%, 92% ee; compound 2n: 23%, 87% ee.
19. 2 (0.11 mmol) were added and the mixture was stirred at r.t. for 9 h. The solvent was removed under reduced pressure and the residue was purified by silica gel chromatography to give an epoxide. An ee was determined by HPLC analysis using a chiral stationary phase described in the footnote to Table 2.