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Volumn 45, Issue 29, 2004, Pages 5589-5592

Development of bis-thiourea-type organocatalyst for asymmetric Baylis-Hillman reaction

Author keywords

Asymmetric reaction; Baylis Hillman reaction; Bis thiourea; Organocatalyst

Indexed keywords

ALDEHYDE DERIVATIVE; CYCLOHEXANE CARBOXALDEHYDE; THIOUREA DERIVATIVE; UNCLASSIFIED DRUG;

EID: 3042579804     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2004.05.137     Document Type: Article
Times cited : (273)

References (38)
  • 3
    • 0000892247 scopus 로고
    • For recent reviews, see: Paquette L.A. New York: Wiley
    • For recent reviews, see: Ciganek E. Paquette L.A. Organic Reactions. Vol. 51:1977;201 Wiley, New York
    • (1977) Organic Reactions , vol.51 , pp. 201
    • Ciganek, E.1
  • 15
    • 0031004738 scopus 로고    scopus 로고
    • Alternative approaches for asymmetric Baylis-Hillman reactions, see:
    • Alternative approaches for asymmetric Baylis-Hillman reactions, see: Brzezinski L.J., Rafel S., Leahy J.W. J. Am. Chem. Soc. 119:1997;4317
    • (1997) J. Am. Chem. Soc. , vol.119 , pp. 4317
    • Brzezinski, L.J.1    Rafel, S.2    Leahy, J.W.3
  • 31
    • 0742322001 scopus 로고    scopus 로고
    • Maher and Connon recently reported 1 as an efficient catalyst for the Baylis-Hillman reaction: Maher D.J., Connon S.J. Tetrahedron Lett. 45:2004;1301
    • (2004) Tetrahedron Lett. , vol.45 , pp. 1301
    • Maher, D.J.1    Connon, S.J.2
  • 32
    • 3042547219 scopus 로고    scopus 로고
    • note
    • 1H NMR spectrum of a 1:1 mixture of the thiourea 1b and enone 3 showed a downfield shift of N-H in 1b from 7.90 to 8.73 ppm. In the case of a 1:1 mixture of 1b and 4a, a downfield shift of N-H in 1b was also observed from 7.90 to 8.30 ppm
  • 36
    • 3042551326 scopus 로고    scopus 로고
    • note
    • 2 657.1016, found 657.1031
  • 37
    • 3042602273 scopus 로고    scopus 로고
    • note
    • 11a was used as catalyst, 5a was obtained in 20% yield. This result clearly indicates the importance of the bis-functionality of catalyst 2
  • 38
    • 3042545104 scopus 로고    scopus 로고
    • note
    • 5e


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.