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Volumn 124, Issue 49, 2002, Pages 14552-14553

Highly enantioselective rhodium-catalyzed hydrogenation of β-dehydroamino acid derivatives using monodentate phosphoramidites

Author keywords

[No Author keywords available]

Indexed keywords

AMINO ACID DERIVATIVE; LIGAND; PHOSPHORAMIDIC ACID DERIVATIVE; RHODIUM;

EID: 0037065328     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja028235t     Document Type: Article
Times cited : (246)

References (41)
  • 4
    • 0000701744 scopus 로고    scopus 로고
    • Jacobsen, E. N., Pfaltz, A., Yamamoto, H., Eds.; Springer, Berlin, Chapter 51
    • (d) Brown, J. M. In Comprehensive Asymmetric Catalysis; Jacobsen, E. N., Pfaltz, A., Yamamoto, H., Eds.; Springer: Berlin, 1999; Vol. 1, Chapter 5.1.
    • (1999) Comprehensive Asymmetric Catalysis , vol.1
    • Brown, J.M.1
  • 35
    • 0011917675 scopus 로고    scopus 로고
    • note
    • Other authors (see ref 7b) recently also described the beneficial influence of small alkyl groups on the nitrogen.
  • 37
    • 0011918222 scopus 로고    scopus 로고
    • See Supporting Information
    • See Supporting Information.
  • 38
    • 0011980159 scopus 로고    scopus 로고
    • note
    • 2.
  • 39
    • 0011979285 scopus 로고    scopus 로고
    • note
    • Although the diastereoisomer (S,S)-3 seems to be less stable than (S,R)-3, both led to a similar ee. This result is analogous to one reported by Reetz and Mehler in the case of monophosphites (see ref 5d).
  • 40
    • 0011950885 scopus 로고    scopus 로고
    • note
    • It is known that polar solvents favor the hydrogenation of -β-(acylamino)acrylates probably because these solvents can break up the intramolecular hydrogen bond in the substrate and thus allow a selective bidentate coordination to the metal (see ref 9a and f).
  • 41
    • 0011918223 scopus 로고    scopus 로고
    • note
    • Interestingly, it has been reported that in the case of bidentate phosphines, the ee decreases upon increasing the pressure (see ref 9a and c).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.