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Volumn , Issue 3, 2006, Pages 391-394

A domino cyclization reaction of iminium salts: A convenient route to hexahydrobenzo[b]phenanthrolines

Author keywords

Domino cyclizations; Hexahydrobenzo b phenanthroline; Iminium salts

Indexed keywords

ALDEHYDE DERIVATIVE; ANILINE DERIVATIVE; HEXAHYDROBENZO[B]PHENANTHROLINE DERIVATIVE; PHENANTHROLINE DERIVATIVE; PRENYLAMINE; UNCLASSIFIED DRUG;

EID: 33344454308     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2006-926236     Document Type: Article
Times cited : (2)

References (43)
  • 10
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    • For the general reviews on hetero Diels-Alder reactions, see: (a) Weinreb, S. M.; Staib, R. R. Tetrahedron 1982, 38, 3087.
    • (1982) Tetrahedron , vol.38 , pp. 3087
    • Weinreb, S.M.1    Staib, R.R.2
  • 16
    • 0000048258 scopus 로고
    • Paquette, L. A., Ed.; Pergamon: Oxford
    • (g) Oppolzer, W. In Comprehensive Organic Synthesis, Vol. 5; Paquette, L. A., Ed.; Pergamon: Oxford, 1991, 315.
    • (1991) Comprehensive Organic Synthesis , vol.5 , pp. 315
    • Oppolzer, W.1
  • 25
    • 0030602266 scopus 로고    scopus 로고
    • and references cited therein
    • For synthesis of tetrahydroquinolines and their biological activity see for example: Katritzky, A. R.; Rachwal, S.; Rachwal, B. Tetrahedron 1996, 52, 15031; and references cited therein.
    • (1996) Tetrahedron , vol.52 , pp. 15031
    • Katritzky, A.R.1    Rachwal, S.2    Rachwal, B.3
  • 37
    • 33344469012 scopus 로고    scopus 로고
    • note
    • 2Br, -78°C to r.t., 2 h; iii) DIBAL-H, THF, 0°C, 1 h.
  • 38
    • 33344467015 scopus 로고    scopus 로고
    • note
    • 2O (start: 20:80; finish 60:40 ratio; 15 min run; 0.05% of formic acid added) with a flow rate of 20 mL/min.
  • 39
    • 0000173004 scopus 로고
    • note
    • 3) or temperature (boiling in xylenes or chlorobenzene in the presence of p-TsOH or camphorsulphonic acid) were not successful. This result may be attributed to the unfavorable. (Diagram presented). Scheme 4 thermodynamics for the formation of this [5,5] fused system. Notably, the attempted reactions of the 2-pyridyl aldehyde derivatives with a single or no Me substituent at the double bond failed as well, presumably due to the insufficient electron density on the olefinic fragment. Similar difficulties in the intramolecular cycloaddition reactions for the formation of fused have been reported, see for example: (a) Wu, H.-J.; Lin, S.-H.; Lin, C.-C. Heterocycles 1994, 38, 1507.
    • (1994) Heterocycles , vol.38 , pp. 1507
    • Wu, H.-J.1    Lin, S.-H.2    Lin, C.-C.3
  • 42
    • 33344468467 scopus 로고    scopus 로고
    • note
    • 2: C, 76.57; H, 6.78; N, 9.92. Found: C, 76.36; H, 6.63; N, 9.77.
  • 43
    • 33344475822 scopus 로고    scopus 로고
    • note
    • Observed relevant NOE (Figure 1; shifts of the bridge protons are indicated in ppm). (Diagram presented).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.