Synthesis of new bridgehead heterocycles: Pyrimido[3′,2′:3,4]- 1,2,4-triazino[5,6-b]-indoles

Sunita Bhagat, Manish Jain, Mukesh Pandey, Pragati, Anjali Saxena, Subhash C. Jain

Research output: Contribution to journalArticle

Abstract

A new bridgehead nitrogen heterocycle viz. 11-carboethoxy-9-oxo- pyrimido[3′2′:3,4]-1,2,4-triazino[5,6-b]indble 3 has been synthesized from 3-azido-5H-,1,2,4-triazino[5,6-b]indole 2 by its reaction with diethyl fumerate. The intermediate 2 was obtained by treating 3-hydrazino-5H-1,2,4-triazino[5,6-b]indole with NaNO2 in presence of polyphosphoric acid. A plausible mechanism for the formation of 3 has been formulated and discussed.

Original languageEnglish (US)
Pages (from-to)272-276
Number of pages5
JournalHeteroatom Chemistry
Volume17
Issue number4
DOIs
StatePublished - Jun 5 2006
Externally publishedYes

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Indoles
Nitrogen
indole
polyphosphoric acid

ASJC Scopus subject areas

  • Chemistry(all)

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Synthesis of new bridgehead heterocycles : Pyrimido[3′,2′:3,4]- 1,2,4-triazino[5,6-b]-indoles. / Bhagat, Sunita; Jain, Manish; Pandey, Mukesh; Pragati; Saxena, Anjali; Jain, Subhash C.

In: Heteroatom Chemistry, Vol. 17, No. 4, 05.06.2006, p. 272-276.

Research output: Contribution to journalArticle

Bhagat, Sunita ; Jain, Manish ; Pandey, Mukesh ; Pragati ; Saxena, Anjali ; Jain, Subhash C. / Synthesis of new bridgehead heterocycles : Pyrimido[3′,2′:3,4]- 1,2,4-triazino[5,6-b]-indoles. In: Heteroatom Chemistry. 2006 ; Vol. 17, No. 4. pp. 272-276.
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