ISSN:
0947-3440
Keywords:
Ambident dianions
;
Nitrogen heterocycles
;
Tautomerism
;
Spiro compounds
;
Radialenes
;
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
A novel strategy for the synthesis of nitrogen-rich heterocycles by regioselective C,N-cyclization of ambident dianions with oxalimidoyl dichlorides is reported. One-pot reactions provide γ-iminotetramic acid amides 1, radialenes 2 and tetraimino-diazaspiro[4.4]nonenones 3. Chemical properties and structural features of the new heterocyclic systems, including the tautomerism of 2, were investigated.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jlac.199719971220