Jia Hong-yu
2004
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Journal
Chemistry and Industry of Forest Products
Abstract
p-Isopropylphenol of high purity was synthesized from β-pinene through a three-step sequence of oxidation,ring-opening and dehydrogenation.The overall yield was 31%.Factors affecting ring-opening and dehydrogenation had been discussed.It was found that the ring-opening of nopinone with 40% phosphoric acid was well performed at 80 ℃ for 1 h and the yield was 67.9%.The dehydrogenation reaction was well done under sealed condition and the yield was 63%.