16476-13-4Relevant academic research and scientific papers
Origins of Glaucophanic Enol in Certain 'Melt' Reactions
Baker, S. Richard,Crombie, Leslie
, p. 211 - 212 (1980)
Chemical and -labelling studies lead to interdependent mechanisms for the formation of glaucophanic and xanthophanic enols; the scheme is supported by consideration of the effects of different alkoxymethylene compounds on the relative yields of glaucyrones and xanthyrones.
Polyketoenols and Chelates. Glaucyrones and their Reactions with Magnesium Methoxide
Baker, S. Richard,Crombie, Leslie
, p. 178 - 181 (2007/10/02)
Using the pyrone melt procedure of the preceding paper, 3,3',5,5'-tetrakismethoxycarbonylglaucyrone (2) and the tautomerically unsymmetrical 3'-acetyl-3,5,5'-trimethoxyglaucyrone (5) have been prepared.Conditions can be adjusted to prevent complete ester exchange in the reactin of 3,3'-diacetyl-5,5'-bisethoxycarbonylglaucyrone (1) with excess of magnesium methoxide, in accord with the mechanism proposed.On reaction with the latter reagent, the two new glaucyrones give aromatic penta-esters (11) and (14), and their mechanisms of formation are discussed.Heating these penta-esters effects cyclisation to xanthyrones having aromatic side-chain termini, (13) and (16), respectively.
