1: 77.3 percent / hydroquinone / benzene / 24 h / 140 °C
2: sulphuric acid / tetrahydrofuran; H2O / 1 h / Ambient temperature
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参考文献
Ackland, Darren J.; Pinhey, John T.
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1987 , p. 2689 - 2694