15151-56-1Relevant academic research and scientific papers
Ylides of Heterocycles, VIII. Reactions of Iodonium-Ylides with Acids
Pongratz, Erik,Kappe, Thomas
, p. 231 - 242 (2007/10/02)
The reaction of various organic and inorganic acids (HX) with iodonium ylides 2 leads to nucleophilic substitution of the iodobenzene substituent by the anion X(-) to yield the heterocycles 5.Some of them are hydrolyzed to the hydroxy compounds 3 or reduced to the starting compounds 1 under the reaction conditions.Reaction of the iodonium ylide 2b with monomethyl sulfate gives the salt 9, which with bases undergoes nucleophilic substitution to compounds 8 and 10-12, respectively, or is converted to 2b again. - Keywords: 3-Acetoxy-4-hydroxy-2-quinolones; 2-Oxoquinoline-4-olates; 3-Substituted 4-hydroxy-2-quinolones
