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Volumn 54, Issue 36, 1998, Pages 10827-10836

Convenient preparation of metals deposited on solid supports and their use in organic synthesis

Author keywords

[No Author keywords available]

Indexed keywords

ALKALI METAL; AMMONIA; ORGANOLITHIUM COMPOUND; POLYETHYLENE; POLYPROPYLENE; POLYSTYRENE; SODIUM CHLORIDE; SOLVENT;

EID: 0032480401     PISSN: 00404020     EISSN: None     Source Type: Journal    
DOI: 10.1016/s0040-4020(98)00625-5     Document Type: Article
Times cited : (16)

References (40)
  • 1
    • 0003872342 scopus 로고
    • M. Schlosser; Ed.; J. Wiley & Sons: Chichester
    • 1. Organometallics in Synthesis, M. Schlosser; Ed.; J. Wiley & Sons: Chichester; 1994.
    • (1994) Organometallics in Synthesis
  • 13
    • 0000718158 scopus 로고
    • 5. Direct formation of organocalcium compounds (RCaX) from metallic calcium and organic halides is limited to simple alkyl iodides (X = I) due to the low reactivity of calcium. In contrast, the highly reactive Rieke-Calcium™ reacts readilly with alkyl and aryl bromides or chlorides at temperatures as low as -78°C (Wu, T.-C.; Xiong, H., Rieke, R. D. J. Org. Chem. 1990, 55, 5045 and references cited therein). We have found, that supported calcium can be readily prepared by its deposition from liquid ammonia, but this reagent shows a low reactivity, similar to commercially available calcium powder. For example, 3-phenylbromopropane reacts with the calcium on sodium chloride to form corresponding alkylbromocalcium reagent in 34% yield, as determined by GC after hydrolysis with diluted HCl. (formula presented)
    • (1990) J. Org. Chem. , vol.55 , pp. 5045
    • Wu, T.-C.1    Xiong, H.2    Rieke, R.D.3
  • 22
    • 0010528687 scopus 로고    scopus 로고
    • note
    • 4 etc.) but is operationally easier, more environmentally benign and economical.
  • 37
    • 85085587704 scopus 로고
    • 25. Rabusic, E. Spisy Prirodovek. Fak. Univ. Brne 1967, 480, 71 (Chem. Abstr. 1968, 68, 87422q).
    • (1968) Chem. Abstr. , vol.68


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.