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Diels-Alder Cycloaddition Lab Results: Discussion: 1. How does heat influence reaction rate? - Heat will influence a reaction rate by increasing the number of collisions between particles, speeding up the reaction, while also affecting the rate of constants. Increased heat will also increase the total net entropy value of the reaction, until a positive enthalpy value is Reaction Start time Finish time Rxn minutes Buta-1,3-diene + methyl acrylate 3:36 7:36 240 minutes Buta-1,3-diene + methyl acrylate with heat 2:14 5:04 170 minutes Cyclopenta-1,3-diene + methyl acrylate 6:35 8:30 115 minutes Cyclopenta-1,3-diene + methyl acrylate with heat 4:57 6:32 95 minutes (3-methoxy-1-methylen e-allyloxy)-trimethyl-silane+methylacrylate 11:13 2:03 170 minutes (3-methoxy-1-methylen e-allyloxy)-trimethyl-sil ane +methyl acrylate with heat 12:30 2:16 106 minutes
reached. 2. Show what happens when the silyl ether is removed upon work- up (5th & 6th reactions). - After silyl ether is removed upon work-up, a ketone group is produced in the product of