通过4-甲氧基苯甲醛的羰基加成反应合成4-甲氧基-苯基羟基乙酸。
The 4-methoxy-phenylhydroxy-acetic acid was synthesized by the carbonyl addition reaction of 4-methoxybenzaldehyde.
苯酚、苯基苯酚、尿素与甲醛的反应产物进一步与糖醇缩聚生成新型铸造用改性酚醛树脂粘结剂。
A new type of phenolic resin adhesive for casting was prepared by condensation polymerization of furfuryl alcohol and the reaction product between phenol, phenylphenol, urea and formaldehyde.
邻苯基苯酚与浓硫酸、甲醛和高铁离子生成红色化合物。
O-Phenylphenol react with sulfuric acid, formaldehyde and ferric iron to form a red colour compound.
邻苯基苯酚与浓硫酸、甲醛和高铁离子生成红色化合物。
O-Phenylphenol react with sulfuric acid, formaldehyde and ferric iron to form a red colour compound.
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