Hydroquinone → Methyl bicyclo[2.2.1]hept-5-ene-2-carboxylate

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DCPD (dicyclopentadiene, Aldrich, 256.5 ml, 1.9 mol), methylacrylate (Aldrich, 405 ml, 4.5 mol) and hydroquinone (3.2 g, 0.03 mol) were charged into a 2 L high-pressure autoclave, and the temperature was raised to 220° C. The resulting mixture was reacted for 5 hours with stirring at 300 rpm. After the reaction was completed, the reaction mixture was cooled and transferred to a distilling apparatus. The reaction mixture was distilled under a reduced pressure (1 torr) using a vacuum pump to yield the title compound at 50° C. (yield: 57.6%, exo/endo=58/42).

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