65977-65-3Relevant academic research and scientific papers
Reactions of Five-Membered Mesoionic Heterocycles with o-Quinonoid Compounds, V. 1,3-Oxazolium-5-olates and 1,3-Thiazolium-5-olates
Friedrichsen, Willy,Schwarz, Ingo,Epe, Bernd,Hesse, Karl-Friedrich
, p. 622 - 631 (2007/10/02)
1,3-Oxazolium-5-olates (1) and 1,3-thiazolium-5-olates (11) react with o-benzoquinones (3) and α-naphthoquinone to give adducts (4, 5, 6, 15) which can formally be derived from ketene valence tautomers of 1 and 11. 9,10-Phenanthrenequinone and 1a yield a compound (10) which possibly results from an initially formed adduct (7) with subsequent loss of CO2.Consistent with this view is a product (14) of the reaction between 9,10-phenanthrenequinone and 11.The structure of 14 has been determined by X-ray crystallography. - Keywords: o-Quinonoid Compounds, Mesoionic Heterocycles
