| 摘要 |
Title compd. was prepd. by cyclization of 3-isobutenyl-1, 2-dihydroxybenzene or the mint. of 10 wt. % 3-isobutenyl-l,2-dihydroxybenzene and 3-metalyl-1, 2-dihydrozybenzene in the presence of 0.001-5 wt. % organic sulfonic acid at 60-200 deg.C. Thus, Claisen rearrangement of 2-H2C:CMeCH2OC6H4OH in octane at 200oC for 1hr 57min gave a mixt. of 45% 3-Me2C:CHC6H3-(OH)2-1, 2 and 55% 3-H2C:CMeCH2C6H3(OH)2-1,2, which was extracted and recrystallized to give title compd(I).
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