DAPre-Lab worksheet(Su 07)

DAPre-Lab worksheet(Su 07) - anhydride and anthracene....

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(Must be completed and checked at the beginning of Lab) 1) Write your procedure that you will follow for today’s lab (correct amounts must be included) Reagents anthracene (97mg, .05mmols) and maleic anhydride ( 53mg, .05 mmols) were added to a conical vial. 1 ml of xylene solvent and a spin vane were then added to mixture. The mixture was heated to reflux using a water-jacketed condenser and an aluminum block for 30- minutes. The mixture was then allowed to cool. The crystallized product was then isolated through vacuum filtration and washed with xylene. The product was placed on a watch glass to dry in an oven. 2) Theoretically, there are a few products you could propose for the diels-alder reaction between maleic
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Unformatted text preview: anhydride and anthracene. Please draw two below. What spectroscopic technique could you use to distinguish the two from one another? 3) Draw the resonance forms for maleic anhydride that show how carbonyls are withdrawing electron density from the dieneophile. 4) Circle the right answer Pure anthracene is a solid liquid . 5) Circle the right answer Anthracene is polar non-polar . 6) Circle the right answer The diels-alder product is likely to have a higher lower melting point that anthracene . Name / Section ______________________________ / ________ Diels-Alder Lab (Prelab worksheet)...
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This note was uploaded on 05/09/2008 for the course CHE 3228 taught by Professor Primrose during the Spring '08 term at Baylor.

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