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Volumn 24, Issue 23, 2005, Pages 5549-5559

Stereochemically dynamic 2,2′-biphosphole ligands for asymmetric catalysis

Author keywords

[No Author keywords available]

Indexed keywords

CARBON; CATALYSIS; ISOMERS; PALLADIUM; PHOSPHORUS; PLATINUM;

EID: 33645805209     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om0503646     Document Type: Article
Times cited : (19)

References (36)
  • 5
    • 0000101704 scopus 로고
    • Academic Press Inc.: New York
    • (b) Valentine, D., Jr. Asymmetric Synthesis; Academic Press Inc.: New York, 1984; Vol. 4, pp 227-312.
    • (1984) Asymmetric Synthesis , vol.4 , pp. 227-312
    • Valentine Jr., D.1
  • 24
    • 33645818685 scopus 로고    scopus 로고
    • note
    • Nucleophilic subtitution on carbon resulted in inversion of configuration in the case of compounds 8 (11) and 9 (12).
  • 27
    • 33645798552 scopus 로고    scopus 로고
    • note
    • In 2,2′-biphosphole, the inversion barrier for the pyramidal phosphorus is reduced, relative to that in phosphines, as a result of the increase in aromatic character of the phosphorus in the transition state; see ref 7.
  • 28
    • 33645818304 scopus 로고    scopus 로고
    • note
    • The driving force of this isomerization process should be the phosphorus inversion. No interconversion between a, b, and c occurred even at +90 °C in toluene according to NMR studies. In 2,2-biphosphole disulfides the pyramidal inversion at phosphorus is suppressed, as the lone pairs are masked by sulfur.
  • 29
    • 33645830642 scopus 로고    scopus 로고
    • note
    • PP3.25; δp 52.9(8),δp 50.9(s)).
  • 33
    • 0004150157 scopus 로고    scopus 로고
    • Programm for crystal structure refinement; University of Göttingen: Germany
    • Sheldrick, G. M. SHELXL 97. Programm for crystal structure refinement; University of Göttingen: Germany, 1997.
    • (1997) SHELXL 97
    • Sheldrick, G.M.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.