Origins of glaucophanic enol in certain ‘melt’ reactions
作者:S. Richard Baker、Leslie Crombie
DOI:10.1039/c39800000211
日期:——
Chemical and [14C]-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 alkoxy-methylene compounds on the relative yields of glaucyrones and xanthyrones.
Polyketoenols and chelates. Glaucyrones and their reactions with magnesium methoxide
作者:S. Richard Baker、Leslie Crombie
DOI:10.1039/p19810000178
日期:——
complete ester exchange in the reaction of 3,3′-diacetyl-5,5′-bisethoxycarbonylglaucyrone (1) with excess of magnesiummethoxide, 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