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Volumn 126, Issue 38, 2004, Pages 11770-11771

In situ catalyst improvement in the proline-mediated α-amination of aldehydes

Author keywords

[No Author keywords available]

Indexed keywords

ALDEHYDE DERIVATIVE; PROLINE;

EID: 4644348576     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja046258x     Document Type: Article
Times cited : (118)

References (25)
  • 4
    • 4143095871 scopus 로고    scopus 로고
    • For recent reviews, see: (a) List, B. Acc. Chem. Res. 2004, 37, 548.
    • (2004) Acc. Chem. Res. , vol.37 , pp. 548
    • List, B.1
  • 5
  • 10
    • 2942679098 scopus 로고    scopus 로고
    • A recent article demonstrated increased reactivity in direct aldol reactions catalyzed by proline modified by replacing the carboxylic acid function with a tetrazolic acid: Hartikka, A.; Arvidsson, P. I. Tetrahedron: Asymmetry 2004, 15, 1831.
    • (2004) Tetrahedron: Asymmetry , vol.15 , pp. 1831
    • Hartikka, A.1    Arvidsson, P.I.2
  • 17
    • 4644330928 scopus 로고    scopus 로고
    • note
    • Product ee = 93% was maintained 3 h after completion of reactions as in Figure 1a at 278 K; after 12 h at 278 K, ee = 89%.
  • 21
    • 4644315223 scopus 로고    scopus 로고
    • note
    • Under typical low-temperature reaction conditions, decomposition of 5 back to proline and product 3 must be slow, since racemization of 3 is not observed at 278 K on the time scale of the reaction.
  • 22
    • 4644366076 scopus 로고    scopus 로고
    • note
    • 3CN results in rapid precipitation of proline.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.