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Volumn 62, Issue 16, 2006, Pages 3872-3881

Synthesis of cyclic dienamide using ruthenium-catalyzed ring-closing metathesis of ene-ynamide

Author keywords

Dienamide; Ene ynamide; Enyne metathesis; Ethylene; Indole; Quinoline

Indexed keywords

AMIDE; CARBENOID; CYCLIC DIENAMIDE; DIHYDROPYRROLIDINE DERIVATIVE; ENAMINE; INDOLE DERIVATIVE; PIPERIDINE DERIVATIVE; PYRROLIDINE DERIVATIVE; QUINOLINE DERIVATIVE; RUTHENIUM COMPLEX; UNCLASSIFIED DRUG; YNAMIDE;

EID: 33645327171     PISSN: 00404020     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tet.2005.11.083     Document Type: Article
Times cited : (48)

References (76)
  • 1
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    • (2003) Handbook of Metathesis
  • 5
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    • For reviews on enyne metathesis, see; (a) Mori, M. Top. Organomet. Chem. 1998, 1, 133.
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    • For recent examples of nitrogen-heterocycles synthesis by cyclization of ynamide using transition metals, see; (b) Witulski, B.; Stengel, T. Angew. Chem., Int. Ed. 1998, 37, 489.
    • (1998) Angew. Chem., Int. Ed. , vol.37 , pp. 489
    • Witulski, B.1    Stengel, T.2
  • 66
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    • and references cited therein
    • For reviews on Diels-Alder reaction of dienamide, see; (a) Petrzilka, M.; Grayson, J. I. Synthesis 1981, 753 and references cited therein.
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    • Petrzilka, M.1    Grayson, J.I.2
  • 67
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    • note
    • When ene-ynamide was used as the substrate, the enyne metathesis of terminal alkyne proceeded smoothly under argon for the first time (cf. Ref. 3e). Recently, RCM of electron-rich terminal alkynes using 1 without ethylene gas has been reported (Ref. 2e,h). We continued to examine the reaction under ethylene gas, since the yield of the cyclized product that was obtained from the reaction under ethylene gas is higher than that of the cyclized product obtained from the reaction under argon.


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