3511-69-1Relevant academic research and scientific papers
Tetrakisphenol
Nowakowska,Daszkiewicz,Kyziol
, p. 1191 - 1197 (2007/10/03)
Formylation of bisphenol-A (1a), with subsequent methylation, oxidation and esterification, gave 2,2-bis-(4-methoxy-3-methoxycarbonylphenyl)-propane (11b). It was transformed into 2,2-bis-[4-methoxy-3-(2-hydroxy-2-propyl)-phenyl]-propane (12b) by the addition of methylmagnesium iodide. This carbinol was condensed with phenol in the presence of dry hydrogen chloride and the title compound was isolated as its tetramethyl ether (4b). Its structure of 2,2-bis-[4-hydroxy-3-(4-hydroxycumyl)-phenyl]-propane (4a) was confirmed by 13C-NMR spectra. In PhOH/HCl medium tetrakisphenol (4a) decomposed and isomerized to bisphenol-A (1a).
