The Radical Chlorination Of Chlorobutane - 1018 Words

Introduction The radical chlorination of chlorobutane is performed using AIBN and sulfuryl chloride. The purpose in doing this is so that the 4 different products yielded could be observed and analyzed. The four products produced are, 1,1-dichlorobutane, 1,2-dichlorobutane, 1,3-dichlorobutane, and 1,4-dichlorobutane. For each product the chlorine adds in a different location relative to the original chlorine. This is due to a number of reasons, including the degree of carbon substitution and proximity to the chloro substituent.. The goal with this in the experiment was to find out why each product is given in different yields. Experimentally, to determine the effect of the chloro substituent on the reactivity per hydrogen, a gas†¦show more content†¦Relative reactivity was also done by taking the reactivity per H of each divided by the reactivity per H of the 1,4 product. All this data points to the fact that the 1,3 product is by far the favored product. As for the reactivi ty of the carbons, it is observed that in general the further away the chlorine substituent is from the original, the better the yield. In this case however, the one furthest away is not the most yielded. This is because the 1,3 dichlorobutane is at the furthest secondary carbon from the chlorine. The 1,2 and 1,4 products share similar yields likely because the 1,4 is the furthest, but also not secondary, and the 1,2 is secondary but closer to the chlorine, making it have a larger partial positive charge. The 1,1 is formed so little because it is putting a chlorine geminal to the chloro substituent, making it have the highest partial positive charge. Also for the 1,3 product, the radical formed is the most favored radical of the 4 products formed. Discussion As for the reaction itself, the formation of the radical follows the 3 step process of Initiation, Propagation, and Termination. The short run down of this is that the initiation step makes the radical via hydrogen abstraction, the propagation step forms products, and the termination ends the reaction and gives stable products. The rate determining step in this reaction is in the hydrogen abstraction. During hydrogenShow MoreRelatedAbstract. The Free Radical Chlorination Of 1-Chlorobutane1103 Words   |  5 PagesAbstract The free radical chlorination of 1-chlorobutane resulted in a mixture of at least 4 different possible products from the reaction. Gas chromatography-mass spectrometry helped in figuring out which of the products are most abundant in the sample product created as well as in discovering the ratio of relative reactivities of the hydrogens. This experiment showed that the ratio of relative reactivities was found to be 1.0 : 3.5 : 6.2 : 2.4, which indicates that the secondary hydrogens are moreRead MoreRadical Halogenation and Gas Chromatography1319 Words   |  6 PagesRADICAL HALOGENATION AND GAS CHROMATOGRAPHY Abstract In radical halogenations lab 1-chlorobutane and 5% sodium hypochlorite solution was mixed in a vial and put through tests to give a product that can then be analyzed using gas chromatography. This experiment was performed to show how a radical hydrogenation reaction works with alkanes. Four isomers were attained and then relative reactivity rate was calculated. 1,1-dichlorobutane had 2.5% per Hydrogen; 1,2-dichlorobutane had 10%; 1,3-dichlorobutane