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Volumn 72, Issue 4, 2007, Pages 1285-1293

Kinetics of the reactions of [p-nitrophenoxy(phenyl)carbene] pentacarbonylchromium(0) with aryloxide ions, hydroxide ion, and water in aqueous acetonitrile. Concerted or stepwise?

Author keywords

[No Author keywords available]

Indexed keywords

ARYL OXIDE IONS; NUCLEOPHILIC ATTACK; STRUCTURE-REACTIVITY RELATIONSHIPS;

EID: 33846996408     PISSN: 00223263     EISSN: None     Source Type: Journal    
DOI: 10.1021/jo062138r     Document Type: Article
Times cited : (17)

References (84)
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    • Even though this view has been challenged,16 it has been upheld in subsequent studies.14
    • 14
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    • See the Supporting Information paragraph at the end of this paper
    • See the Supporting Information paragraph at the end of this paper.
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    • Terrier, F.; Rodriguez-Dafonte, P.; Le, Guével, E.; Montiers, G. Org. Biomol. Chem. 2006, 4, 4352.
    • (b) Terrier, F.; Rodriguez-Dafonte, P.; Le, Guével, E.; Montiers, G. Org. Biomol. Chem. 2006, 4, 4352.
  • 59
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    • However, two chlorine substituents in ortho positions lead to a strong steric effect.12
    • 12
  • 60
    • 33846958261 scopus 로고    scopus 로고
    • 2 would also show a slight increase due to an enhanced electronic push by the electron pairs on the aryloxy group oxygen.
    • 2 would also show a slight increase due to an enhanced electronic push by the electron pairs on the aryloxy group oxygen.
  • 61
    • 33846966990 scopus 로고    scopus 로고
    • The σP values for 4-CF3, 4-CN, 4-CHO, and 4-NO2 are 0.54, 0.66, 0.42, and 0.78, respectively, while the σP- values are 0.56, 0.99, 0.98, and 1.28, respectively.28 Hence, the Δσ, σP, σP values for 4-CF3, 4-CN, 4-CHO, and 4-NO 2 are 0.02, 0.33, 0.56, and 0.49, respectively. σR values, another measure of π-acceptor strength, yield the same qualitative order: 0.09 (4-CF3, 0.18 (4-CN, 0.23 (4-CHO, and 0.16 (4-NO 2).28
    • 28
  • 63
    • 33846992150 scopus 로고    scopus 로고
    • The Marcus intrinsic barrier of a reaction is the barrier in the absence of a thermodynamic driving force, i.e, when ΔG°, 0. 30
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    • 28
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    • Other factors such as the smaller electron withdrawing inductive effect of the MeS group compared to MeO and PhO groups contribute to differences in the k1OH values.2c
    • 2c


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.