Diels Alder Reaction Lab Report Sample Essay

Diels Alder Reaction Lab Report Sample Essay The synthesis is carried out with the participation of dienes where the two double bonds are separated by not more than one simple bond (conjugated diene). For example, the butadiene is CH2 = CH-CH = CH2. The second component is the olefin X-CH = CH-X (the compound with one double bond) that usually contains some additional groups of X (X-carbonyl, carboxyl, nitro group, etc.) that activate the olefin double bond and it easily enters diene synthesis as a result. The essence of diene synthesis is that three double bonds of two compounds participating in the reaction are revealed with the subsequent closure and the formation of new bonds. Thus, the original system had three double bonds, and as a result, a cyclic compound with one double bond is formed. Since only the rearrangement of the bonds takes place in this process, the by-products are not formed. The most effective variant of the diene is realized in the case when a compound containing two diene fragments is taken as a starting material. For example, there can be two cyclopentadienyl rings connected by a flexible hydrocarbon bridge (CH2) n-. The second component is the olefin as in the previous example. One of the cyclopentadienyl rings that’s playing the role of the diene component, reacts with the olefin strictly according to the diene synthesis scheme. A single multiple bond appears in the upper cyclic fragment of the formed molecule. Consequently, it is now an olefinic component. In the lower part there is an unpreserved diene component, the cyclopentadienyl ring. They can also react further according to the scheme of diene synthesis. The result is a connection containing only one multiple link in the lower cyclic fragment. Therefore, it is an olefin that can react in the same way with the next molecule of the starting diene. A reaction that has passed in one part of the molecule makes it possible for it to flow in another part and to allow the whole chain repeating itself. This reaction has been called dominoes as it resembles a situation where one falling bone causes the fall of a neighboring one. In the transitional state of the coordinated process, a common system of delocalized molecular orbitals is formed, and the consideration of such processes within the framework of the concepts of localized bonds proves to be of little value. Understanding the mechanisms of these reactions became possible only with a broad introduction of quantum mechanical concepts in the organic chemistry. At the same time, a considerable progress was made in the theoretical study of these processes, and reactions of this type are currently being investigated very intensively. A detailed examination of all types of coordinated processes, as well as various theoretical approaches to their description are beyond the scope of this essay. The diels alder reaction is widely used in organic chemistry for the synthesis of cyclic and polycyclic compounds, as well as a method for the analytical determination of dienes.