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Volumn 11, Issue 1, 2009, Pages 41-44

Copper-catalyzed tandem oxidation-olefination process

Author keywords

[No Author keywords available]

Indexed keywords

ALCOHOL DERIVATIVE; ALKENE; COPPER;

EID: 59649112592     PISSN: 15237060     EISSN: None     Source Type: Journal    
DOI: 10.1021/ol802299d     Document Type: Article
Times cited : (51)

References (80)
  • 5
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    • Selig, P.; Bach, T. Angew. Chem. Int. Ed. 2008, 47, 5082-5084.
    • (e) Selig, P.; Bach, T. Angew. Chem. Int. Ed. 2008, 47, 5082-5084.
  • 19
    • 64549089376 scopus 로고    scopus 로고
    • For recent and selected applications of these tandem processes in total synthesis, see
    • For recent and selected applications of these tandem processes in total synthesis, see:
  • 36
    • 45449090993 scopus 로고    scopus 로고
    • Lebel, H.; Ladjel, C. Organomet al.lics 2008, 27, 2676-2678.
    • Lebel, H.; Ladjel, C. Organomet al.lics 2008, 27, 2676-2678.
  • 52
    • 0035540401 scopus 로고    scopus 로고
    • Kim and co-workers have reported a tandem oxidation-olefination process using a ruthenium-catalyzed aerobic oxidation and stoichiometric stabilized phosphorus ylides; see: Kim, G, Lee, D. G, Chang, S. Bull. Korean Chem. Soc. 2001, 22, 943-944
    • Kim and co-workers have reported a tandem oxidation-olefination process using a ruthenium-catalyzed aerobic oxidation and stoichiometric stabilized phosphorus ylides; see: Kim, G.; Lee, D. G.; Chang, S. Bull. Korean Chem. Soc. 2001, 22, 943-944.
  • 54
    • 64549128835 scopus 로고    scopus 로고
    • Markó, I. E.; Giles, P. R.; Tsukazaki, M.; Gautier, A.; Dumeunier, R.; Dodo, K.; Philippart, F.; Chelle-Regnault, I.; Mutonkole, J.-L.; Brown, S. M.; Urch, C. J. Aerobic, met al.-catalyzed oxidation of alcohols, Transition Met al.s for Organic Synthesis; Wiley-VCH: Wemheim, 2004; 2, pp 437-478.
    • (b) Markó, I. E.; Giles, P. R.; Tsukazaki, M.; Gautier, A.; Dumeunier, R.; Dodo, K.; Philippart, F.; Chelle-Regnault, I.; Mutonkole, J.-L.; Brown, S. M.; Urch, C. J. Aerobic, met al.-catalyzed oxidation of alcohols, Transition Met al.s for Organic Synthesis; Wiley-VCH: Wemheim, 2004; Vol. 2, pp 437-478.
  • 62
    • 0142011027 scopus 로고    scopus 로고
    • Another catalytic system using copper in combination with TEMPO derivatives has been developed. Nevertheless, due to the sterically hindered environnement at the copper center, the secondary alcohols are slowly oxidated. See: a
    • Another catalytic system using copper in combination with TEMPO derivatives has been developed. Nevertheless, due to the sterically hindered environnement at the copper center, the secondary alcohols are slowly oxidated. See: (a) Gamez, P.; Arends, I. W. C. E.; Reedijk, J.; Sheldon, R. A. Chem. Commun. 2003, 2414-2415.
    • (2003) Chem. Commun , pp. 2414-2415
    • Gamez, P.1    Arends, I.W.C.E.2    Reedijk, J.3    Sheldon, R.A.4
  • 72
    • 64549153018 scopus 로고    scopus 로고
    • Typical procedure: CuCl (5 mg, 0.05 mmol) and 1, 10-phenanthroline (9 mg, 0.05 mmol) were placed in a vessel, and anhydrous fluorobenzene was added (10 mL, c, 0.1 M, The resulting solution was stirred at room temperature until the solution became green and clear (5 to 10 min, The alcohol (1.00 mmol) was added, followed by solid t BuOK (5.6 mg, 0.05 mmol, The solution was stirred at room temperature for 10 min, and NMI (120 mg, 1.4 mmol) and DBAD (230 mg, 1 mmol) were added. The reaction mixture was heated at reflux under a gentle stream of O2 until the reaction was completed as monitored by TLC. The resulting mixture was cooled to 60 °C, and the vessel was backfilled with argon. Triphenylphosphine (315 mg, 1.20 mmol) and 2-propanol (3837mu;L, 5.00 mmol) were added. Then, 1.50 of trimethylsilyldiazomethane (solution in ether) was added, and the mixture was stirred for 2 h before a second portion of 1.50 equiv of TMSCHN2 was added. The reaction was stirred u
    • 1H NMR, or TLC analysis. The solvent was removed under reduced pressure, and the crude alkene was purified by flash chromatography on silica gel.
  • 73
    • 64549083420 scopus 로고    scopus 로고
    • An excess of 2-propanol accelerated the rate of the reaction, whereas the excess of TMSCHN2 is required, as this reagent is destroyed over time in the reaction mixture
    • 2 is required, as this reagent is destroyed over time in the reaction mixture.
  • 74
    • 64549106666 scopus 로고    scopus 로고
    • In the palladium-catalyzed aerobic oxidation, only moderate conversions were observed for the allylic alcohols
    • In the palladium-catalyzed aerobic oxidation, only moderate conversions were observed for the allylic alcohols
  • 75
    • 34547625265 scopus 로고    scopus 로고
    • see ref 11, For modified conditions for the palladium-catalyzed aerobic oxidation of allylic alcohols, see: Batt, F, Bourcet, E, Kassab, Y, Fache, F. Synlett, 2007, 1869-1872
    • (see ref 11). For modified conditions for the palladium-catalyzed aerobic oxidation of allylic alcohols, see: Batt, F.; Bourcet, E.; Kassab, Y.; Fache, F. Synlett., 2007, 1869-1872.
  • 76
    • 64549156624 scopus 로고    scopus 로고
    • In some cases, racemization was observed during the palladiumcatalyzed aerobic oxidation, see ref 11
    • In some cases, racemization was observed during the palladiumcatalyzed aerobic oxidation, see ref 11.
  • 77
    • 64549143528 scopus 로고    scopus 로고
    • For examples of Brönsted acid-catalyzed Wittig reaction, see: (a) Rüchardt, C, Eichler, S, Panse, P. Angew. Chem, Int. Ed. 1963, 2, 619
    • For examples of Brönsted acid-catalyzed Wittig reaction, see: (a) Rüchardt, C.; Eichler, S.; Panse, P. Angew. Chem., Int. Ed. 1963, 2, 619.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.