Naphthalene → n-Butyl 2-hydroxy-3-butenoate

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An autoclave (50 cc microclave) is charged with 8.0 g of 1-butanol, 0.2249 g of sucrose (0.6569 mmol), 121.0 mg naphthalene (internal standard) and finally with 160.5 mg Sn-BEA (prepared according to U.S. Pat. No. 6,306,364). The autoclave is closed, charged with 20 bar of argon and heated to 160° C. After the temperature reaches 100° C., the mechanical stirrer is started (500 rpm) and the mixture is heated for 20 hours under these conditions. GC-analysis of the reaction mixture shows that 0.68 mmol of n-butyl lactate is formed (26%) together with 0.164 mmol n-butyl 2-hydroxy-3-butenoate (8%).

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