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Volumn 75, Issue 20, 2010, Pages 7033-7036

Synthesis of substituted indole from 2-aminobenzaldehyde through [1,2]-aryl shift

Author keywords

[No Author keywords available]

Indexed keywords

ANTHRANILIC ACID; BUILDING BLOCKES; ETHYL DIAZOACETATE; REGIOCHEMICAL CONTROL; SIMPLE METHOD; SUBSTITUTED INDOLES;

EID: 77957919304     PISSN: 00223263     EISSN: 15206904     Source Type: Journal    
DOI: 10.1021/jo1016713     Document Type: Article
Times cited : (55)

References (47)
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    • Harwood Academic Publishers: Amsterdam, The Netherlands
    • Rahman, A.; Basha, A. Indole Alkaloids; Harwood Academic Publishers: Amsterdam, The Netherlands, 1998; p 141.
    • (1998) Indole Alkaloids , pp. 141
    • Rahman, A.1    Basha, A.2
  • 6
    • 0003430301 scopus 로고    scopus 로고
    • Springer Publishing: New York,; Vol., p.
    • Gupta, R. R. Heterocyclic Chemistry; Springer Publishing: New York, 1999; Vol. 2, p 193.
    • (1999) Heterocyclic Chemistry , vol.2 , pp. 193
    • Gupta, R.R.1
  • 7
    • 33746864043 scopus 로고    scopus 로고
    • For a general review on indole synthesis
    • For a general review on indole synthesis, see: Humphrey, G. R.; Kuethe, J. T. Chem. Rev. 2006, 106, 2875-2911
    • (2006) Chem. Rev. , vol.106 , pp. 2875-2911
    • Humphrey, G.R.1    Kuethe, J.T.2
  • 9
    • 33846120947 scopus 로고    scopus 로고
    • For some recent methods
    • For some recent methods, see: Du, Y.; Liu, R.; Linn, G.; Zhao, K. Org. Lett. 2006, 8, 5919-5922
    • (2006) Org. Lett. , vol.8 , pp. 5919-5922
    • Du, Y.1    Liu, R.2    Linn, G.3    Zhao, K.4
  • 14
    • 2942609168 scopus 로고    scopus 로고
    • For a review on metal-catalyzed synthesis of indoles
    • For a review on metal-catalyzed synthesis of indoles, see: Zeni, G.; Larock, R. C. Chem. Rev. 2004, 104, 2285-2210
    • (2004) Chem. Rev. , vol.104 , pp. 2285-2210
    • Zeni, G.1    Larock, R.C.2
  • 16
    • 4444376920 scopus 로고    scopus 로고
    • For recent variants of the Larock indole synthesis
    • Alonso, F.; Beletskaya, I. P.; Yus, M. Chem. Rev. 2004, 104, 3079-3160 For recent variants of the Larock indole synthesis
    • (2004) Chem. Rev. , vol.104 , pp. 3079-3160
    • Alonso, F.1    Beletskaya, I.P.2    Yus, M.3
  • 26
    • 39749121974 scopus 로고    scopus 로고
    • For leading references on acid-catalyzed reactions of substituted diazomethanes and carbonyls
    • For leading references on acid-catalyzed reactions of substituted diazomethanes and carbonyls, see: Hashimoto, T.; Naganawa, Y.; Maruoka, K. J. Am. Chem. Soc. 2008, 130, 2434-2435
    • (2008) J. Am. Chem. Soc. , vol.130 , pp. 2434-2435
    • Hashimoto, T.1    Naganawa, Y.2    Maruoka, K.3
  • 44
    • 77957920857 scopus 로고    scopus 로고
    • Performing the reaction at a lower temperature or at various concentrations had no effect on reaction yield.
    • Performing the reaction at a lower temperature or at various concentrations had no effect on reaction yield.
  • 46
    • 77957927837 scopus 로고    scopus 로고
    • Benzaldehydes 1 were readily prepared on gram scale from the corresponding anthranilic acids. See the Supporting Information for details.
    • Benzaldehydes 1 were readily prepared on gram scale from the corresponding anthranilic acids. See the Supporting Information for details.
  • 47
    • 77957910355 scopus 로고    scopus 로고
    • Further investigations revealed that the desired addition/1,2-aryl shift step occurred quite rapidly (less than 2 h), but the subsequent condensation was very long.
    • Further investigations revealed that the desired addition/1,2-aryl shift step occurred quite rapidly (less than 2 h), but the subsequent condensation was very long.


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