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Volumn 8, Issue 14, 2006, Pages 2945-2947

Reduction of Cp2ZrCl2 with mischmetall: A new method for generating an efficient "Cp2Zr" equivalent

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EID: 33746611153     PISSN: 15237060     EISSN: None     Source Type: Journal    
DOI: 10.1021/ol060712f     Document Type: Article
Times cited : (19)

References (32)
  • 1
    • 0038455271 scopus 로고    scopus 로고
    • Marek, I., Ed.; Wiley-VCH: Weinheim, Germany
    • For reviews, see: (a) Titanium and Zirconium in Organic Synthesis; Marek, I., Ed.; Wiley-VCH: Weinheim, Germany, 2002.
    • (2002) Titanium and Zirconium in Organic Synthesis
  • 2
    • 41349089787 scopus 로고    scopus 로고
    • New aspects of zirconium containing organic compounds
    • Marek, I., Ed.; Springer: Berlin
    • (b) New Aspects of Zirconium Containing Organic Compounds. In Topics in Organometallic Chemistry; Marek, I., Ed.; Springer: Berlin, 2005; Vol. 10.
    • (2005) Topics in Organometallic Chemistry , vol.10
  • 3
    • 29044437634 scopus 로고    scopus 로고
    • Metallocenes in regio- and stereoselective synthesis
    • Takahashi, T., Ed.; Springer: Berlin
    • (c) Metallocenes in Regio- and Stereoselective Synthesis. In Topics in Organometallic Chemistry; Takahashi, T., Ed.; Springer: Berlin, 2005; Vol. 8.
    • (2005) Topics in Organometallic Chemistry , vol.8
  • 5
    • 0000443799 scopus 로고
    • Zirconium-promoted bicyclization of enynes
    • Trost, B. M., Fleming, I., Eds.; Pergamon: Oxford
    • (e) Negishi, E. Zirconium-Promoted Bicyclization of Enynes. In Comprehensive Organic Synthesis; Trost, B. M., Fleming, I., Eds.; Pergamon: Oxford, 1991; Vol. 5, pp 1163-1184.
    • (1991) Comprehensive Organic Synthesis , vol.5 , pp. 1163-1184
    • Negishi, E.1
  • 16
    • 85083868291 scopus 로고    scopus 로고
    • note
    • Caution: mischmetall is pyrophoric and sparks can come out from ingot when scraped.
  • 21
    • 85083869006 scopus 로고    scopus 로고
    • note
    • Mischmetall ingots were purchased from Fluka or Alfa Aesar-Johnson Matthey (minimum rare earth content is 99.0%).
  • 22
    • 85083868682 scopus 로고    scopus 로고
    • note
    • La, Ce, and Nd ingots (Aldrich, 99.9% purity) were powdered with a rasp under Ar.
  • 23
    • 85083869490 scopus 로고    scopus 로고
    • note
    • When phenylacetylene was added only 15 or 30 min after the reaction mixture turned red, the yield of 1a decreased to 68 and 43%, respectively.
  • 24
    • 0002488801 scopus 로고    scopus 로고
    • Zirconacyclopentadienes in organic synthesis
    • Marek, I., Ed.; Wiley-VCH: Weinheim, Germany, Chapter 2
    • Various selective transformations from tetrasubstituted zirconacyclopentadienes have been developed by Negishi, Takahashi, Whitby, and others. See: Takahashi, T.; Li, Y. Zirconacyclopentadienes in Organic Synthesis. In Titanium and Zirconium in Organic Synthesis; Marek, I., Ed.; Wiley-VCH: Weinheim, Germany, 2002; Chapter 2.
    • (2002) Titanium and Zirconium in Organic Synthesis
    • Takahashi, T.1    Li, Y.2
  • 25
    • 33746632752 scopus 로고
    • A few examples of Zr-mediated intramolecular coupling of terminal alkynes, involving an indirect generation of zirconocene-alkyne complexes from 2-bromoalkenes, have been reported. See: (a) Barluenga, J.; Sanz, R.; Fananas, F. J. Chem. Commun. 1995, 1009-1010.
    • (1995) Chem. Commun. , pp. 1009-1010
    • Barluenga, J.1    Sanz, R.2    Fananas, F.J.3


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.