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Volumn 60, Issue 18, 2004, Pages 4087-4096

Oxidation of allylic alcohols, amines, and sulfides mediated by assembled triphase catalyst of phosphotungstate and non-cross-linked amphiphilic copolymer

Author keywords

Catalysis; Oxidation; Polymer support; Self assembly; Tungsten and compounds

Indexed keywords

ALCOHOL DERIVATIVE; ALLYL ALCOHOL; ALLYL COMPOUND; AMINE; AMMONIA; COPOLYMER; IMINE; PHOSPHOTUNGSTIC ACID; POLY(N ISOPROPYLACRYLAMIDE); SULFIDE;

EID: 1842713118     PISSN: 00404020     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tet.2004.02.072     Document Type: Article
Times cited : (60)

References (67)
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    • Partial results were reported as communications, see Refs. 4a and 4d.
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    • Jacobs and co-workers reported the Amberlite IRA-900-supported Venturello catalyst converted into NO3- was effective for the enhancement of selectivity of epoxidation, see:
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    • Addition of 1 to poly(N-isopropylacrylamide) afforded no precipitates. This result indicated that the existence of the ammonium salt units in 2 was essential for cross-linking the polymers through phosphotungstates.
    • Addition of 1 to poly(N-isopropylacrylamide) afforded no precipitates. This result indicated that the existence of the ammonium salt units in 2 was essential for cross-linking the polymers through phosphotungstates.
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    • For examples of the epoxidation by homogeneous tungsten catalysts, see: W.J. Mijs, & C.R.H.I. De Jonge. New York: Plenum Press
    • For examples of the epoxidation by homogeneous tungsten catalysts, see: Ogata Y., Sawaki Y. Mijs W.J., De Jonge C.R.H.I. Organic syntheses by oxidation with metal compounds. 1986;839-876 Plenum Press, New York.
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    • Recent attempts to improve the drawbacks on polymer-supported tungsten catalysts for the epoxidation, see:
    • Recent attempts to improve the drawbacks on polymer-supported tungsten catalysts for the epoxidation, see: Villa A.L., Sels B.F., De Vos D.E., Jacobs P.A. J. Org. Chem. 64:1999;7267-7270.
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    • It was reported that pH control in aqueous media was important for the tungsten-catalyzed epoxidation, see Refs. 12d, 12e and 13b.
    • It was reported that pH control in aqueous media was important for the tungsten-catalyzed epoxidation, see Refs. 12d, 12e and 13b.
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    • For examples of the oxidation of amines by homogeneous tungsten catalysts; For a review, see: (a). W. Adam. Weinheim: Wiley
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    • 2 aqueous solution was less successful because dimerization of the substrates occurred. Besides, recycling of PWAA in case of 9a was not efficient to afford 10a in lower yield.
    • 2 aqueous solution was less successful because dimerization of the substrates occurred. Besides, recycling of PWAA in case of 9a was not efficient to afford 10a in lower yield.
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    • note
    • 2 under identical conditions, isomerizations were hardly observed.
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    • For examples of the oxidation of sulfides to sulfones by homogeneous tungsten catalysts, see: (a)
    • For examples of the oxidation of sulfides to sulfones by homogeneous tungsten catalysts, see: (a) Schultz H.S., Freyermuth H.B., Buc S.R. J. Org. Chem. 28:1963;1140-1142.
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    • For recent developments and improvements for the oxidation of sulfides to sulfones, see: (a)
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    • Noyori et al. reported that the oxidation of sulfides to sulfoxides proceeded efficiently in hydrogen peroxide without catalysts, so that we have not examined the selective oxidation to sulfoxide. See Ref. 19g
    • Noyori et al. reported that the oxidation of sulfides to sulfoxides proceeded efficiently in hydrogen peroxide without catalysts, so that we have not examined the selective oxidation to sulfoxide. See Ref. 19g.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.