Outline Introduction: The Friedel Crafts reaction provides a way through which aromatic compounds can have an alkyl group added to them so that they may have C-C bonds. The most commonly used solvent is dichloromethane. Experimental section: This experiment, which involves the preparation of 4,4’-di(t-butyl)biphenyl was done in a duration of three weeks. In the first week, a reflux reaction was done in order to obtain a crude product. Part of the crude product was recrystallized from ethanol and the remaining part was purified by column chromatography in the second week. In week three, both samples were compared and analyzed using thin layer chromatography and IR spectroscopy. Results: The yield of the crude product was recorded to weigh 4.6260 grams net. The weight of the product collected from the column was found to be 1.5675 grams net. The recrystallized product had a higher melting point and an exact purple spot on the TLC plate. Discussion: From the results obtained, it was evident that the recrystallized product is purer than the sample purified by column chromatography. Since this experimental procedure was not totally environmentally friendly because of the use of solvents like dichloromethane, more research should be conducted on alternative solvents to be used in the Friedel Crafts reaction. Introduction The Friedel Crafts reaction provides a way through which aromatic compounds can have the addition of an alkyl so as to have C-C bonds. One of the most used solvents in this reaction is dichloromethane (Mikami 2005, p87). The aim of this experiment is not only to prepare 4,4’-di(t-butyl)biphenyl but to also obtain a pure product of the same. Purification is done by the use of chromatography, TLC to be more specific. One of the applications of this reaction in the manufacture of dyes. It is also used as a test to give the measure of how aromatic a compound is (Bansal 2001, p71). Experimental section Week 1 3.1 grams of the biphenyl, 6.5ml of tert-butyl, 20ml of dichloromethane, and some boiling chips were added into a clean and dry 100ml round-bottomed flask. This mixture was carefully swirled to avoid spillage until a clear solution was obtained. A reflux condenser was fixed onto the round-bottomed flask, but tubing for the water inlet and outlet were not fixed. The pre-weighed iron (III) chloride was added into the mixture quickly and carefully so as to avoid excessive exposure of this compound to atmospheric moisture. The rubber tubing was then connected to the reflux condenser after which a loose ball of cotton wool was placed at the top of the condenser so as to avoid the entry of the atmospheric mixture. The flask in this setup was then placed in an oil bath which was on a hot plate, after which the cooling water was then allowed to run through the condenser. The mixture therein was heated to reflux and allowed to continue reacting for half an hour after the reflux had commenced. The flask was then cooled by placing it in a bowl of ice and then the mixture was poured into a separating funnel containing 10ml of 2M hydrochloric acid and 5grams of ice. The flask was rinsed out using a little dichloromethane to avoid sample loss and the contents added int