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Volumn 46, Issue 11, 2005, Pages 1849-1853

A practical synthesis of highly functionalized aryl nitriles through cyanation of aryl bromides employing heterogeneous Pd/C

Author keywords

[No Author keywords available]

Indexed keywords

BROMINE DERIVATIVE; CARBON; NITRILE; PALLADIUM; PHOSPHINE DERIVATIVE; ZINC; ZINC BROMIDE;

EID: 13944260543     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2005.01.098     Document Type: Article
Times cited : (29)

References (32)
  • 13
    • 85030811758 scopus 로고    scopus 로고
    • note
    • 2i dppf
  • 27
    • 85030806516 scopus 로고    scopus 로고
    • note
    • Pd/C catalyst employed in this study was purchased from Degussa Japan Co., Ltd. and has the following chemical properties: impregnation depth, 200-500 nm (thick shell); reduction degree, 0-25%; Pd dispersion, 28%; water content, less than 3 wt %. The catalyst is commercially available at Degussa Japan Co., Ltd
  • 28
    • 85030805714 scopus 로고    scopus 로고
    • note
    • 2 five times. The mixture was stirred at 80-125°C for 3-15 h. After completion of the reaction, the suspension was cooled down to room temperature, diluted with AcOEt (15 mL), and filtered. The filtrate was concentrated, and the residue was purified by silica gel column chromatography or recrystallization to provide the desired product
  • 29
    • 85030812126 scopus 로고    scopus 로고
    • note
    • 2f has been reported to be 20%
  • 30
    • 85030815096 scopus 로고    scopus 로고
    • note
    • The leaching of Pd from Pd/C was measured at the end of the reaction of 1a to 2a by X-ray fluorescence analysis of the filtered solution, and 30% of the initially added Pd was found to dissolve from the charcoal matrix to the solution phase
  • 31
    • 84888916451 scopus 로고    scopus 로고
    • Sep. 6
    • For the side reaction (precipitation to Pd black) in the Suzuki coupling, see: Chem. Eng. News 2004, Sep. 6, 49-58
    • (2004) Chem. Eng. News , pp. 49-58


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.