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Volumn 45, Issue 21, 2004, Pages 4157-4161

Efficient synthesis of trisubstituted alkenes in an aqueous-organic system using a versatile and recyclable Rh/m-TPPTC catalyst

Author keywords

Alkynes; Biphasic system; Boronic acids; Recyclable rhodium m TPPTC system; Water soluble ligand

Indexed keywords

ALKENE DERIVATIVE;

EID: 2342563184     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2004.03.136     Document Type: Article
Times cited : (56)

References (40)
  • 1
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    • For selected books, see: P.A. Grieco. London: Blacky Academic and Professional
    • For selected books, see: Grieco P.A. Organic Synthesis in Water. 1998;Blacky Academic and Professional, London
    • (1998) Organic Synthesis in Water
  • 2
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    • C.-J. Li, & T.-H. Chan. New York: Wiley & Sons
    • Li C.-J., Chan T.-H. Organic Reactions in Aqueous Media. 1997;Wiley & Sons, New York
    • (1997) Organic Reactions in Aqueous Media
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    • B. Cornils, & W.A. Herrmann. New York: Wiley-VCH
    • Cornils B., Herrmann W.A. Aqueous-Phase Organometallic Catalysis. 1998;Wiley-VCH, New York
    • (1998) Aqueous-Phase Organometallic Catalysis
  • 16
    • 2342657654 scopus 로고    scopus 로고
    • note
    • Abbreviations: TPPTS = trisodium salt of 3, 3′, 3″-phosphanetriylbenzenesulfonic acid, TPPTC = trilithium salt of 3, 3′, 3″-phosphanetriylbenzenecarboxylic acid, TPPDS = dipotassium salt of 3, 3′-phosphanediylbenzenesulfonic acid
  • 20
    • 2342547949 scopus 로고    scopus 로고
    • note
    • 7
  • 24
    • 0002015261 scopus 로고    scopus 로고
    • For the formation of dimeric compound with titane catalyst, see:
    • For the formation of dimeric compound with titane catalyst, see: Launey V., Beaudet I., Quintard J.-P. Synlett. 1997;821
    • (1997) Synlett , pp. 821
    • Launey, V.1    Beaudet, I.2    Quintard, J.-P.3
  • 28
    • 0038034717 scopus 로고    scopus 로고
    • and references cited therein
    • Itooka T., Miyaura N. J. Org. Chem. 68:2003;6000. and references cited therein
    • (2003) J. Org. Chem. , vol.68 , pp. 6000
    • Itooka, T.1    Miyaura, N.2
  • 30
    • 2342550779 scopus 로고    scopus 로고
    • note
    • No reaction was observed under basic conditions without rhodium catalyst
  • 31
    • 2342494996 scopus 로고    scopus 로고
    • note
    • 2 (3.4 mg, 1.5 mol %) and m-TPPTC (12.3 mg, 6 mol %) at room temperature was successively added a water (0.5 mL)/toluene (0.5 mL), phenylboronic acid (152 mg, 1.25 mmol), and oct-4-yne (74 μL, 0.5 mmol). The mixture was heated at 100°C until completion of the reaction and then cooled to room temperature. The alkene was isolated either through separation and extraction with toluene (2 times) or direct filtration on a short pad of silica gel and evaporation under reduced pressure. 90 mg (96%) of 6a were obtained as a pale yellow oil. No further purification was necessary. The purity ( > 95%) was checked by NMR and GC-MS analyses
  • 32
    • 2342498491 scopus 로고    scopus 로고
    • note
    • 2O mixture
  • 35
    • 0037032214 scopus 로고    scopus 로고
    • For some recent successful reactions based on concentration controls in water or fluorous systems, see:
    • For some recent successful reactions based on concentration controls in water or fluorous systems, see: Ryu I., Matsubara H., Yasuda S., Nakamura H., Curran D.P. J. Am. Chem. Soc. 124:2002;12946
    • (2002) J. Am. Chem. Soc. , vol.124 , pp. 12946
    • Ryu, I.1    Matsubara, H.2    Yasuda, S.3    Nakamura, H.4    Curran, D.P.5
  • 39
    • 2342548947 scopus 로고    scopus 로고
    • note
    • The m-TPPTC ligand displays a higher basicity than the TPPTS phosphane. This study will be published elsewhere
  • 40
    • 2342553201 scopus 로고    scopus 로고
    • note
    • 1H NMR 400 MHz δ=5.48, 5.46 ppm J=1.1 Hz and 7.11, 7.04 ppm J=16.5 Hz)


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.