7535-13-9Relevant academic research and scientific papers
METHODS OF MANUFACTURE OF 2-ARYL-3,3-BIS(HYDROXYARYL)PHTHALIMIDINES
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Paragraph 0050; 0054, (2017/11/15)
A synthetic route for producing a 2-phenyl-3,3-bis(4-hydroxyphenyl)phthalimidine, using a dihydrophenolphthalein intermediate is provided. The dihydrophenolphthalein can be obtained by reduction of a precursor phenolphthalein that is commonly used in the manufacture of phthalimidines. Formation of the dihydrophenolphthalein is followed by activation, amide formation, and oxidation to provide the product phthalimidine
