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Volumn , Issue 6, 2006, Pages 849-852

A facile method for the stereoselective preparation of (1Z,3E)-dienyl ethers via 1,4-elimination of 1,4-dialkoxy-(2Z)-alkenes with n-butyllithium

Author keywords

1,4 eliminations; Dienyl acetals; Dienyl ethers; Precoordinations; Stereo selective synthesis

Indexed keywords

1 ALKOXY 4 METHOXY ALKENE DERIVATIVE; 1 SILOXY 4 METHOXY ALKENE DERIVATIVE; ALKENE DERIVATIVE; BUTYLLITHIUM; ETHER; ETHER DERIVATIVE; LITHIUM DERIVATIVE; SILANE DERIVATIVE; UNCLASSIFIED DRUG;

EID: 33645766566     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2006-939053     Document Type: Article
Times cited : (14)

References (35)
  • 1
    • 33645791244 scopus 로고    scopus 로고
    • Rappoport, Z.; Marek, I., Eds.; John Wiley and Sons Ltd.: Chichester
    • For reviews, see: (a) Tomooka, K. In The Chemistry of Organolithium Compounds, Vol. 2; Rappoport, Z.; Marek, I., Eds.; John Wiley and Sons Ltd.: Chichester, 2004, 749-828.
    • (2004) The Chemistry of Organolithium Compounds , vol.2 , pp. 749-828
    • Tomooka, K.1
  • 2
    • 33645771718 scopus 로고    scopus 로고
    • Baldwin, J. E.; Williams, R. M., Eds.; Pergamon: Manchester, Chap. 8
    • (b) Clayden, J. In Organolithiums: Selectivity for Synthesis; Baldwin, J. E.; Williams, R. M., Eds.; Pergamon: Manchester, 2002, Chap. 8.
    • (2002) Organolithiums: Selectivity for Synthesis
    • Clayden, J.1
  • 5
    • 0000002499 scopus 로고
    • Trost, B. M.; Fleming, I., Eds.; Pergamon: Oxford, Chap. 4.6
    • (e) Brückner, R. In Comprehensive Organic Synthesis, Vol. 6; Trost, B. M.; Fleming, I., Eds.; Pergamon: Oxford, 1991, Chap. 4.6.
    • (1991) Comprehensive Organic Synthesis , vol.6
    • Brückner, R.1
  • 11
    • 85077749433 scopus 로고
    • For a review of 1,3-dienyl silyl ethers (silyl dienol ethers), see: Brownbridge, P. Synthesis 1983, 85.
    • (1983) Synthesis , pp. 85
    • Brownbridge, P.1
  • 29
    • 33645777815 scopus 로고    scopus 로고
    • note
    • 2 (1 atm), 5% Lindlar cat., quinoline, MeOH, r.t.
  • 30
    • 33645761649 scopus 로고    scopus 로고
    • note
    • 2OP via the literature procedure (ref. 7d).
  • 31
    • 33645756538 scopus 로고    scopus 로고
    • note
    • 2C≡CH according to the same three-step procedure as described for 1b (ref. 9).
  • 32
    • 33645779719 scopus 로고    scopus 로고
    • note
    • 2O without substrates.
  • 33
    • 33645787778 scopus 로고    scopus 로고
    • note
    • The complete 1Z-to-1E changeover was observed in the case of 1d. The reaction of silyl derivative 1b in THF under the same conditions gave a mixture of stereoisomers without any detectable retro-Brook rearrangement product: (1Z,3E)/(1Z,3Z)/(1E,3E)/(1E,3Z) = 42:1:16:21 (yield, %).
  • 34
    • 33645753278 scopus 로고    scopus 로고
    • note
    • 2O instead of THF gave almost the same results.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.