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Volumn 264, Issue 1-2, 2007, Pages 9-16

Ruthenium-catalyzed dimerization of acrylonitrile in the presence of carboxylic acids

Author keywords

C C bond formation; C H bond activation; Carboxylic acid; Dimerization of acrylonitrile; Ruthenium catalyst

Indexed keywords

CARBOXYLIC ACIDS; CATALYSIS; CHEMICAL BONDS; DIMERIZATION; RATE CONSTANTS; RUTHENIUM;

EID: 33847233675     PISSN: 13811169     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.molcata.2006.08.077     Document Type: Article
Times cited : (17)

References (100)
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    • Ruthenium catalyst:
  • 54
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    • Rh catalyst:
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    • Pd catalyst:
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    • R.J. McKinney, U.S. Patent 4,504,674 (1985).
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    • 2-Cyanoethyl o-benzoylbenzoate 4b 0.57 g (2.0 mmol) was added initially to the solution used in experimental section 2.4. The conversion of AN was 15.5%. The products and the yields were as follows: cis-1 5.80%, trans-1 6.46%, ADN 2 0.21%, cis,cis-3 0.15%, cis,trans-3 0.52%, trans,trans-3 0.26%, PN 5 0.50% (selectivity 3.2%), and 2-cyanoethyl o-benzoylbenzoate 4b 0.50% (selectivity 3.2%). The overall yield of linear dimers 1-3 was 13.4% (TON 992) and the selectivity for linear dimers 1-3 was 86.5%.
  • 85
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    • The dimer of AN was not given at all when p-toluenesulfonic acid and trifluoroacetic acid were used as the acid. Phenol gave the same results as those in the absence of hydrogen and carboxylic acids.
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    • Masada reported that cis-1 was the major product in the gas-phase dimerization of acrylonitrile
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    • A similar catalytic cycle involving C-H bond cleavage and a catalytic cycle not involving C-H bond cleavage but involving initial hydrometalation were postulated [5].
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    • Similar cis cleavage has been postulated in the work of Ref. [22]. See also a similar stoichiometric reaction of an α,β-unsaturated ester:
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    • (In contrast, trans cleavage has also been suggested; see [5c])
    • Komiya S., Ito T., Cowie M., Yamamoto A., and Ibers J. J. Am. Chem. Soc. 98 (1976) 3874 (In contrast, trans cleavage has also been suggested; see [5c])
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    • Murai and co-workers proposed that the nitrile group of aromatic nitrile was capable of directing ruthenium to the ortho C-H bond via the π-bonded mode:


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.