He Chong-heng
2010
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Journal
Yunnan Chemical Technology
Abstract
2-(4-methylphenyl)propanoic acid was synthesised by rearrangement of ketalization using zinc acetate as major catalyst and cuprous chloride as the promoter.The effect of amount of catalyst,reaction temperature and reaction time on yield of 2-(4-methylphenyl)propanoic acid was investigated.The experiment results show that the maximum yield of 89% is obtained when reaction for 4.5h using 8.1g ketal,0.7g and 0.5g zinc acetate and cuprous chloride respectively at temperature of 140℃.