Alkene

distributions among the product. Theory In an elimination reaction, the reagents in question proceed in either an E1 or E2 reaction mechanism in order to produce an alkene. For this experiment, 1-butanol and 2-butanol, proceeds

The purpose of this experiment was to synthesize 2-methyl-1-butene and 2-methyl-2-butene. We later confirmed the alkenes in each product with Baeyer and Bromine test. Through Gas liquid chromatography we could calculate the yield percentage. E1 and E2 are similar yet, different reactions. In the E1 reaction, the rate determining step is the loss of the leaving group when the mixed with a solvent and an energy source is provided, in this case it was heat. This step produces a carbocation. A tertiary

occurred during the experiment such as the air movement which might cause the burning wooden splinter to extinguish. The gas collected decolourises the brown bromine water and this proves that alkene gas is released. This is because alkene is more reactive than alkane and it is unsaturated compared to alkane. The alkene gas released in this experiment is propene gas. Elimination reaction is the reaction that takes place as the reaction releases propene gas instead of producing propanol (alcohol). The type

terminal alkene. Overall Reaction: Compound | MW | Density | BP | MSDS | 1-octene | 112.24 | .715 | 121 | Flammable, irritant | BH | 13.84 | .898 | 90 | Irritant | Tetrahydrofuran | 72.1 | .889 | 66 | Irritant | Hydrogen Peroxide | 34.0 | 1.135 | 152 | Corrosive, harmful | 1-octanol | 130.2 | .824 | 195 | Irritant | 2-octanol | 130.2 | .819 | 160 | Flammable | Discussion: Hydroboration-oxidation is a one step, conservative organic reaction that converts an alkene into a neutral

graph produced from the Gas Chromatography showed that a reaction occurred because there are peaks on the graph. Each peak represents a major product formed. Since there are two peaks on the graph 2 major products formed. The theoretical yield of the alkene mixture was 3.914 g; however, the actual yield of the mixture was 0.73 g. The percent yield for the reaction was 18.65%. Considering the percent yield, the reaction was not efficient. The difference in the theoretical yield and the percent yield is

After the crude product was collected by crystallization process, it was weighted to be 8.4756 g. it was recrystallized and collected. The weight of pure product was obtained to be 5.772 g In comparison to the theoretical yield of the experiment; it was calculated to be 65.99 % recover and 82% total yield. The melting point (MP) of the product was taken in order to identify the product. 2 trials were performed, and the results of both trials are the same, 102-105oC. The expected product of this experiment

showed peaks at 1650cm-1 and 3050cm-1. This indicated an absence of an O-H of alcohol group and a presence of C=C and C-H alkene functional groups. The absence of O-H alcohol functional group was logical since all of the possible products had alkanes and alkenes functional group but O-H alcohol functional group. The Br2 in CCl4 test was conducted to test for presence of an alkene group. The 2-methylcyclohexanol displayed a negative result however, the product and 1-decene resulted positive. The Jones

bromine atom because Br-Br bond is the weakest bond available. Therefore, the carbocation intermediate must have a bromine atom. 2. A The product must have at least one halogen atom. In step 1 of the electrophilic addition mechanism, the incoming alkene causes the heterolytic fission of the Br-Br bond. This step is made possible because the Br-Br bond is weaker than the O-H bond of the water molecules. 3. C There are three possible nucleophiles i.e. Br-, H2O and NO3-. Option A: The nucleophile

hydroxyl group attached to a saturated carbon atom. Alcohols on a molecular level can be transformed into alkenes. For this reaction to occur, the alcohol must be dehydrated. Alcohols are capable of being transformed under two known reaction mechanisms, E1 and E2. These mechanisms allow for the dehydration of water and the formation of a double bond which is created into a synthesized alkene. The dehydration of an alcohol can occur in one of two ways. The first way is through being acid catalyzed

An alcohol dehydration reaction is useful for synthesizing alkenes. Through the use of an acid catalyst, an alcohol is protonated and then dehydrated by the loss of a water molecule. This dehydration step results in a carbocation, and deprotonation by a base results in a final alkene product. In this experiment, 4-methylcyclohexene was obtained with a 32% yield. The theoretical yield of the product was 6.3 grams, but the actual yield of the product was 2.0 grams. A low percent yield of product could