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Volumn 131, Issue 27, 2009, Pages 9500-9501

CO assistance in ligand exchange of a ruthenium racemization catalyst: Identification of an acyl intermediate

Author keywords

[No Author keywords available]

Indexed keywords

ALKOXIDE; CHEMICAL EQUATIONS; CO LIGANDS; CO-GROUP; DENSITY FUNCTIONAL THEORY CALCULATIONS; IN-SITU; LIGAND EXCHANGES; NMR ASSIGNMENT; NMR SPECTROSCOPY; NMR SPECTRUM; NUCLEOPHILIC ATTACK; STRETCHING VIBRATIONS;

EID: 67650503910     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja9038455     Document Type: Article
Times cited : (29)

References (30)
  • 18
    • 67650349300 scopus 로고    scopus 로고
    • The CO bands of 5 appear at 2021 and 1964 cm-1. For experimental details, see the Supporting Information.
    • The CO bands of 5 appear at 2021 and 1964 cm-1. For experimental details, see the Supporting Information.
  • 19
    • 67650404355 scopus 로고    scopus 로고
    • The reaction mixture containing intermediate A also showed characteristic peaks in the area of C-O stretching vibrations (t-BuO). However, the mixture possibly contained t-BuOH (and t-BuOK), and the peaks in this area were not easy to assign.
    • The reaction mixture containing intermediate A also showed characteristic peaks in the area of C-O stretching vibrations (t-BuO). However, the mixture possibly contained t-BuOH (and t-BuOK), and the peaks in this area were not easy to assign.
  • 20
    • 67650361848 scopus 로고    scopus 로고
    • 2O vapor was not constant (which it seldom is), a peak in this region might not be visible. Indeed, in our first experiments, the system contained so much humidity that a lot of noise in this region made it difficult to detect the acyl peak.
    • 2O vapor was not constant (which it seldom is), a peak in this region might not be visible. Indeed, in our first experiments, the system contained so much humidity that a lot of noise in this region made it difficult to detect the acyl peak.
  • 25
    • 67650401594 scopus 로고    scopus 로고
    • acyl; see note 13). Even if the shifts are reversed, the structural conclusions remain the same.
    • acyl; see note 13). Even if the shifts are reversed, the structural conclusions remain the same.
  • 27
    • 67650355656 scopus 로고    scopus 로고
    • 5Cp; Cp∧ = 1-MeO-2,3,4-tris(neopentyl)Cp.
    • 5Cp; Cp∧ = 1-MeO-2,3,4-tris(neopentyl)Cp.
  • 28
    • 67650392199 scopus 로고    scopus 로고
    • 13C NMR shifts were 205.3 (acyl) and 211.4 ppm (CO). For experimental details, see the Supporting Information.
    • 13C NMR shifts were 205.3 (acyl) and 211.4 ppm (CO). For experimental details, see the Supporting Information.
  • 29
    • 67650413788 scopus 로고    scopus 로고
    • The computed barrier for the corresponding exchange of chloride for tertbutoxide in 3 is 16.7 kcal/mol see ref 5
    • The computed barrier for the corresponding exchange of chloride for tertbutoxide in 3 is 16.7 kcal/mol (see ref 5).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.