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Volumn 45, Issue 49, 2004, Pages 8977-8980

Polymer supported palladium N-heterocyclic carbene complexes: Long lived recyclable catalysts for cross coupling reactions

Author keywords

C C coupling; Heck; N Heterocyclic carbene; Palladium; Polymer; Suzuki

Indexed keywords

CARBENOID; HETEROCYCLIC COMPOUND; ISONICOTINIC ACID; PALLADIUM COMPLEX; POLYMER;

EID: 8644241587     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2004.10.061     Document Type: Article
Times cited : (89)

References (18)
  • 9
    • 0042671140 scopus 로고    scopus 로고
    • Recently and concurrent with this work Peris et al. have demonstrated the immobilisation of 1 on various clays and the application of this combination as a supported catalyst for Heck and Sonagashira reactions. E. Mas-Marza, A.M. Segarra, C. Claver, E. Peris, and E. Fernandez Tetrahedron Lett. 44 2003 6595 6599
    • (2003) Tetrahedron Lett. , vol.44 , pp. 6595-6599
    • Mas-Marza, E.1    Segarra, A.M.2    Claver, C.3    Peris, E.4    Fernandez, E.5
  • 13
    • 8644276545 scopus 로고    scopus 로고
    • note
    • Complete coupling of phenyl iodide with 4-methoxyphenylboronic required 36 h at 165°C. In contrast the unfunctionalised complex promoted this transformation in <24 h at the same temperature. Conversions after 1 h 1 66%, 4ax 58%; 4 h 1 81%, 4ax 70%; 24 h 1 100%, 4ax 94%; 36 h 4ax 100%
  • 15
    • 8644268275 scopus 로고    scopus 로고
    • note
    • 4. The mixture was filtered and the solvent removed in vacuo and the product purified by flash column chromatography. Regeneration of the catalyst followed an identical procedure as described above
  • 18
    • 8644249169 scopus 로고    scopus 로고
    • note
    • Although in this study we have routinely used ∼1 mol % of the polymer supported catalyst this simply reflects the ease in handling of the resin (∼50 mg) on the scale of the reactions undertaken. However, we have been able to run similar reactions using 0.1 mol % loadings with no loss in yield and recyclability


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.