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Volumn 44, Issue 33, 2003, Pages 6207-6210

Highly efficient dehydrogenation of indolines to indoles using hydroxyapatite-bound Pd catalyst

Author keywords

Dehydrogenation; Heterogeneous Pd catalyst; Hydroxyapatite; Indole; Indoline

Indexed keywords

HYDROXYAPATITE; INDOLE DERIVATIVE; PALLADIUM;

EID: 0041846797     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4039(03)01550-8     Document Type: Article
Times cited : (103)

References (27)
  • 3
    • 84943388739 scopus 로고
    • A.R. Katritzky, C.W. Rees, C.W. Bird, Cheeseman G.W.H. Oxford: Pergamon Press
    • Sundberg R.J. Katritzky A.R., Rees C.W., Bird C.W., Cheeseman G.W.H. Comprehensive Heterocyclic Chemistry. 4:1984;313 Pergamon Press, Oxford.
    • (1984) Comprehensive Heterocyclic Chemistry , vol.4 , pp. 313
    • Sundberg, R.J.1
  • 19
    • 85031139887 scopus 로고    scopus 로고
    • Generally, indoles are sensitive to oxygen, and consequently, the decrease in the catalytic activity may be attributed to the deactivation of PdHAP by the over-oxidized products.
    • Generally, indoles are sensitive to oxygen, and consequently, the decrease in the catalytic activity may be attributed to the deactivation of PdHAP by the over-oxidized products.
  • 20
    • 85031131044 scopus 로고    scopus 로고
    • In the case of 2,3-dimethylindoline (cis:trans=1:3), only the cis isomer was exclusively dehydrogenated to 2,3-dimethylindole, whereas the trans isomer remained intact.
    • In the case of 2,3-dimethylindoline (cis:trans=1:3), only the cis isomer was exclusively dehydrogenated to 2,3-dimethylindole, whereas the trans isomer remained intact.
  • 21
    • 84984260929 scopus 로고
    • Dehydrogenation of the trans isomer hardly occurred under the same reaction conditions
    • Gribble G.W., Hoffman J.H. Synthesis. 1977;859. Dehydrogenation of the trans isomer hardly occurred under the same reaction conditions.
    • (1977) Synthesis , pp. 859
    • Gribble, G.W.1    Hoffman, J.H.2
  • 25
    • 85031134593 scopus 로고    scopus 로고
    • 4. Removal of ethyl acetate under the reduced pressure, followed by recrystallization from n-hexane solution afforded pure 2 (0.112 g, 93% isolated yield)
    • 4. Removal of ethyl acetate under the reduced pressure, followed by recrystallization from n-hexane solution afforded pure 2 (0.112 g, 93% isolated yield).
  • 27
    • 85031143997 scopus 로고    scopus 로고
    • 2 gas to 2 was ca. 1:1
    • 2 gas to 2 was ca. 1:1.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.