Cationic 1,3‐diazadienes in annulation reactions. Synthesis of pyrimidine, thiadiazinedioxide and triazine derivatives | Zendy

Landreau Cyrille | Zendy; Deniaud David | Zendy; Reliquet Alain | Zendy; Reliquet FranÇOise | Zendy; Meslin Jean Claude | Zendy

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Cationic 1,3‐diazadienes in annulation reactions. Synthesis of pyrimidine, thiadiazinedioxide and triazine derivatives

Author(s) -

Landreau Cyrille,

Deniaud David,

Reliquet Alain,

Reliquet FranÇOise,

Meslin Jean Claude

Publication year - 2001

Publication title -

journal of heterocyclic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.321

H-Index - 59

eISSN - 1943-5193

pISSN - 0022-152X

DOI - 10.1002/jhet.5570380113

Subject(s) - chemistry , annulation , phenyl isothiocyanate , isocyanate , dimethyl acetylenedicarboxylate , pyrimidine , cationic polymerization , isothiocyanate , triazine , acetylenedicarboxylate , organic chemistry , medicinal chemistry , cycloaddition , catalysis , stereochemistry , polyurethane

Triazapentadienium iodides 2 prepared from N '‐thiocarbamoylformamidines 1 are efficient intermediates in heterocyclic synthesis. They react with ketenes, sulfenes, phenyl isocyanate or isothiocyanate and dimethyl acetylenedicarboxylate affording the corresponding dihydropyrimidinones 3 , thiadiazinedioxides 5 , triazinones 6 , triazinethiones 7 and pyrimidines 9 .

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