A new approach to the synthesis of heteroannulated 3,1-oxazin-4-ones from β-enamino esters and phosgeneiminium salts

Synthesis

Volumn , Issue 2, 2000, Pages 255-258

  Wang, Zhijun ^a   Neidlein, Richard ^a   Krieger, Claus ^b  

^a UNIVERSITY OF HEIDELBERG   (Germany)

^b MAX PLANCK INSTITUTE FOR MEDICAL RESEARCH   (Germany)

Author keywords

Addition reactions; Heteroannulated 3,1 oxazin 4 ones; Heterocycles; Heterocyclic enamino esters; Phosgeneiminium salts

Indexed keywords

CARBOXYLIC ACID DERIVATIVE; ESTER; HETEROCYCLIC COMPOUND; OXAZINE DERIVATIVE;

ARTICLE; CHEMICAL REACTION; CHEMICAL STRUCTURE; INFRARED SPECTROSCOPY; NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY; SYNTHESIS; X RAY ANALYSIS;

EID: 0034052738     PISSN: 00397881     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2000-6249     Document Type: Article

References (15)

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13. -1 3403 independent reflections were measured out of which 2939 reflections with I ≥ 1.96 σ(I) were graded as observed. The structure was solved by conventional direct methods (SIR) and refined (288 parameters) by full matrix least-squares technique using anisotropic temperature factors for non-hydrogen atoms and isotropic ones for the hydrogen atoms. The final R-value was 0.046. Crystallographic data for the structure reported in this paper have been deposited with the Cambridge Crystallographic Data Centre as supplementary publication No. CCDC-130636. Copies of the data can be obtained free of charge on application to: CCDC, 12 Union Road, Cambridge CB2 1EZ, UK (e-mail: deposit@ccdc.cam.ac.uk; fax +441223336033).
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