Question

for this experiemt, in the ir spectrum result how do you identify the peaks and which compunds are present here?

The Diels-Alder Reaction of Anthracene with Maleic Ankydride The Diels-Alder reaction is a member of a class of reactions called cycloadditions. The reaction involves threex bonds, two from the dicne and one from the dienophile in a concerted reaction to form a six-membered ring. Since the reaction involves four n clectroes in the dicne and twor clostrons from the dienophile, it is sometimes referred to as a 4+2 cycloaddition Normal Diels-Alder reactions are favored by clectron donating groups on the diene and clectron withdrawing groups on the dienophile. The diene must be capable of achieving an is conformation to gencrate the cis double bond in the cyclohexene product. Acyclic dicnes may rotate around a single bond, but dienes locked in the s-trans conformation do not react (1 6 5 Diene Dienophile The purpose of this xynes + 30 mins 9,10-dildroanthracene Maleic anlydride Anthraceme 9.10-accinie anlydride experiment is to form 9,10-dihydroanthracene-9,10-ap-succinic 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. Objeetives: In this experiment, you will Synthesize 9,10-dihydroanthracene-9,10-aB-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 deg C) Experimental Procedure

Answer 1

In IR spectrum the values of wave numbers are given. As each and every functional group posses unique ranges of IR range. Just proceed through different functional group and its characteristic stretching frequency values. We are able to identify the groups and compound.