Question

for this experiment i got a yield of 0.93g

how do you and what is the theoretical and percentage yield?

The Diels-Alder Reaction of Anthracene with Maleic Ankudride The Disco Alder reaction is a member of a class of reactions called cycladditions. The reacties wolves three x bonds, two from the diene and one from the dicnophile in a concerted reaction to Come six-memberedning Smce the reaction involves four electroes in the dienendo slectrons from the dicasphile, it is sometimes referred to as a 4+2 cycladdition Normal Dicls-Alder reactions are favored by electron donating groups on the dine and det withdrawing groups on the dinophile. The diene must be capable of achieving a conformation to generate the cis double hood in the cyclohexene product. Acyclic dicns may rotate around a single bond, but dienes locked in the trans conformation do not react 5*1-*-:o: Diene Dienophile The purpose of this Asthracene Maleic anidride 9.10-dibrotrace -9,10- andride experiment is to form 9,10-dihydroanthracene-9, 10-B-succinie anhydride by way of a Diels Alder reaction between anthracene and maleic anhydride, as shown in the reaction below. Anthracene acts as the diene and maleic anhydride functions as the dienophile. Xylene (dimethylbenzene) is used as a high boiling temperature solvent so that the reaction will proceed quickly. Objectives: In this experiment, you will Synthesize 9,10-dihydroanthracene-9.10-.0-succinic anhydride. . Isolate the product • Measure the melting temperature of your product ONLY if the Lab Instructor confirms that the thermometers in the lab can handle the relatively high melting point (250 degC) Experimental Procedure

Answer 1

xyleme salwr,3om melarmas 98 g1mel Molan mas 216 gImol Molan mos 1F8 mas taken O. 80 S O.409 mote O.B0 O.40 198 0.0040 mas. 0.0045 mol Hene maleic cnhydaide s the limiting eagent as iisin les amound maleic anhyd id fro duces 1 mel funo duct 980 8 maleic an hy dsude treduus 2t6 g odud mol maleic onhydsuide fnaduces 216-0 & moduct 0.90 8 maleic anhydaide edues 216.0 x0.40 nodu 126 o duct ie CThonchical Yield) 4iell of fore duct o blainad em expeniment 0.139 Prochical yield X100 Theonchicad yield % yield O.93 x1G0 82. S1. ny 1.126