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Volumn 29, Issue 22, 2010, Pages 5791-5804

Chiral phosphine-phosphite ligands with a substituted ethane backbone. influence of conformational effects in rhodium-catalyzed asymmetric olefin hydrogenation and hydroformylation reactions

Author keywords

[No Author keywords available]

Indexed keywords

BIPHENOL; CHIRAL INDUCTION; CHIRAL PHOSPHINE; CONFORMATIONAL EFFECT; COORDINATION PLANE; DFT METHOD; DIMETHYL ITACONATE; ENANTIOSELECTIVE CATALYSTS; ENANTIOSELECTIVE HYDROGENATION; MODEL COMPLEXES; OLEFIN HYDROGENATION; PHOSPHITE LIGANDS; PRODUCT CONFIGURATION; RELATIVE STABILITIES; RH CATALYSTS; RHODIUM COMPLEXES; RHODIUM-CATALYZED; STABLE CONFORMERS; TETRAMETHYL;

EID: 78650133639     PISSN: 02767333     EISSN: 15206041     Source Type: Journal    
DOI: 10.1021/om1003545     Document Type: Article
Times cited : (34)

References (71)
  • 36
    • 78650128471 scopus 로고    scopus 로고
    • note
    • We have previously observed that conformational mobility of coordinated 2a (Ar = Ph) did not affect the phosphite orientation, as two preferred conformers of [Ir(Cl)(CO)(2a)] showed superimposable phosphite groups, while the orientation of the Ph substituents of the phosphino group differs considerably among the two conformers.
  • 44
    • 78650143344 scopus 로고    scopus 로고
    • note
    • In model complexes Me groups in 3,3′ positions of the biaryl moieties have been suppressed to quicken calculations. Then, the model ligand generated by suppression of Me groups in 1 is notated as 1 ′. Model ligands 7 ′- 10 ′ are notated analogously. In the discussion, to avoid redundancy, only the notation of the ligand and conformation will be mentioned; therefore Rh-(S)- 2 ′ -A refers to the structure of Rh(Cl)(CO)[(S)- 2 ′ -A ].
  • 49
    • 22944445223 scopus 로고    scopus 로고
    • Catalysts bearing π-accepting ligands have shown either lock and key or anti- lock and key mechanisms for these substrates.
    • Catalysts bearing π-accepting ligands have shown either lock and key or anti- lock and key mechanisms for these substrates. Reetz, M. T.; Meiswinkel, A.; Mehler, G.; Angermund, K.; Graf, M.; Thiel, W.; Mynott, R.; Blackmond, D. G. J. Am. Chem. Soc. 2005, 127, 10305
    • (2005) J. Am. Chem. Soc. , vol.127 , pp. 10305
    • Reetz, M.T.1    Meiswinkel, A.2    Mehler, G.3    Angermund, K.4    Graf, M.5    Thiel, W.6    Mynott, R.7    Blackmond, D.G.8
  • 52
    • 78650114193 scopus 로고    scopus 로고
    • Ref (22).
    • Ref (22).
  • 57
    • 78650131200 scopus 로고    scopus 로고
    • note
    • For these considerations it has been assumed that P-OP ligands have the same conformational preferences in square-planar chlorocarbonyls and in the planar bypiramidal hydridodicarbonyls. This is however reasonable, as P-OP have the same bite angle in both structures and conformational preferences observed in chlorocarbonyls should not be obscured by steric effects provided by CO and Cl co-ligands.
  • 58
    • 78650092408 scopus 로고    scopus 로고
    • Values for ligand (S,S)- 8 extrapolated from experimental ones obtained with (R,R)- 8.
    • Values for ligand (S,S)- 8 extrapolated from experimental ones obtained with (R,R)- 8.
  • 60
    • 78650103330 scopus 로고    scopus 로고
    • Ref 7.
    • Ref 7.
  • 68
    • 0003969658 scopus 로고    scopus 로고
    • Bruker-AXS, Inc.: Madison, WI, USA.
    • SAINT 6.02; Bruker-AXS, Inc.: Madison, WI, USA, 1997-1999.
    • (1997) SAINT 6.02
  • 69
    • 78650126280 scopus 로고    scopus 로고
    • Sheldrick, G.; Bruker-AXS, Inc.: Madison,WI, USA.
    • Sheldrick, G. SADABS; Bruker-AXS, Inc.: Madison,WI, USA, 1999.
    • (1999) SADABS
  • 71
    • 0004150157 scopus 로고    scopus 로고
    • Bruker-AXS, Inc.: Madison, WI, USA.
    • SHELXTL 6.14; Bruker-AXS, Inc.: Madison, WI, USA, 2000-2003.
    • (2000) SHELXTL 6.14


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.