Synthesis of 5-, 6- and 7-azaindoles via palladium-catalyzed heteroannulation of internal alkynes

Tetrahedron Letters

Volumn 39, Issue 30, 1998, Pages 5355-5358

  Ujjainwalla, Feroze ^a   Warner, Daniel ^a  

^a MERCK RESEARCH LABORATORIES   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ALKYNE DERIVATIVE; INDOLE DERIVATIVE; PALLADIUM; PYRIDINE DERIVATIVE; REAGENT;

ARTICLE; CATALYST; DRUG SYNTHESIS; REACTION ANALYSIS;

EID: 0032560699     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4039(98)01069-7     Document Type: Article

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26. 2 as the catalyst, under otherwise identical conditions. The following results were obtained: entry 1, 27% isolated yield; entry 2, 48%; and entry 4, 43% isolated yield of corresponding 7-azaindoles.
27. +]).
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29. 1H NMR (400 or 500 MHz) and mass spectrometry.