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Volumn , Issue 7, 2008, Pages 1021-1026

TiCl4/tert-butyl hydroperoxide: Chemioselective oxidation of secondary alcohols and suppression of sharpless epoxidation

Author keywords

Alcohol; Epoxidation; Selective oxidation

Indexed keywords

ALCOHOL; TERT BUTYL HYDROPEROXIDE; TITANIUM CHLORIDE; TITANIUM DERIVATIVE;

EID: 42949102687     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2008-1066997     Document Type: Article
Times cited : (5)

References (45)
  • 33
    • 42949111723 scopus 로고    scopus 로고
    • The general procedure for alcohol oxidation with TiCl4/TBHP or Ti(Oi-Pr)4/TBHP is shown as follows. To alcohol substrate 1 (1 mmol) and 4 Å MS (0.5 g) in CHCl3, CH 2Cl2, or CDCl3 (2 mL) at r.t. was added TiCl4 or Ti(Oi-Pr)4 (0.1 mmol, 10% in CHCl 3, The mixture was stirred at r.t. for 1 h. Toluene solution of TBHP (1.7 mmol) was added into the mixture, followed by stirring at r.t. or reflux conditions for 1 or 2 d. Low-boiling-point products 2c and 2d were purified by trap-to-trap fractionation and other products were purified by column chromatography with silica gel as stationary phase and hexane-EtOAc as mobile phase. All the products are known and their characterizations are shown as follows. Compound trans-3a:2d 1H NMR (300 MHz, CDCl3, δ, 3.19 (m, 1 H, 3.78 dd, J, 12.8, 3.5 Hz, 1 H, 3.92
    • 3): δ = 25.9, 30.6, 51.5, 63.8, 208.9.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.