FIELD: chemical technology, organic chemistry. SUBSTANCE: product: 2,6-di-(4-hydroxy-3-methoxybenzylidene)-cyclohexanone that is synthesized by condensation of 4-hydroxy-3-methoxybenzaldehyde with cyclohexanone in ethanol solution in the presence of concentrated sulfuric acid. Yield of the end product is increased to 91%. EFFECT: increased yield of the end product, decreased synthesis time, simplified process.
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