Reaction- Synthesis of tret-Pentyl chloride. Which peaks in your IR spectrum mat
ID: 1047055 • Letter: R
Question
Reaction- Synthesis of tret-Pentyl chloride.
Which peaks in your IR spectrum match the known structure oftert-pentyl chloride? Or what structure can you identify from this IR spectrum? for each diagnostic peak, you should identify its frequency in wavenumbers and the probable vibration You should then write a short discussion that matches the diagnostic peaks to a functional group.
SI REACTION-Sunthesis of ter Pentyl Chloride Purpose tertiary alcohol via the Svi mechanism Introduction nstrates the procedure for the synthesis of a tertiary alkyl halide from a tert-Penty! chloride can casily be prepared by allowing tert-pentyl alcohol to concentrated hydrochlorie acid according to the following overall equation. Read your lecture textbook for detailed information regarding the Sl mechanism by which this reaction occurs and the competing El elimination mechanism by which organic alkene by-products may be formed. react with conc.) CH3CH2-C-?? H2o. -- Ha The reaction is conducted in a separatory funnel. As the reaction separates from the aqueous reaction mixture in which it is insoluble proceeds, the alkyl chloride A small amount of an alkene, 2-methyl-2-butene, may be produced as an elimination product in this reaction. It can be removed by distilling the product mixture. If the alkene, rather than the alkyl chloride, is the desired product from the competing substitution elimination reactions, sulfuric acid would be used instead of hydrochloric acid. Since bisulfate, HSO4, is a poor nucleophile and would not form the corresponding alkyl hydrogen sulfate as a substitution product, the major product would be from elimination. In this reaction, the Cl is a good nucleophile and so the substitution reaction is favored over the elimination reaction. . Procedure I. Reaction / tert-Pentyl alcohol (-S mL.) will be issued to you in a small vial. Weigh the vial+cap and its contents (+.001 g), recording the mass directly in your notebook at the balance. Pour the alcohol into the 125 mL separatory funnel from your lab kit, using a glass funnel to avoid contaminating the separatory funnel neck. Weigh the empty vial-cap and record its mass Add 12-13 ml. of concentrated hydrochloric acid to the alcohol in the separatory Again, use a glass funnel in the neck of the separatory funnel. Do not stopper the separatory 71Explanation / Answer
IR has a triplet band around 2500 and 3000 cm-1.CH stretching is aliphatic so it could be pentylamine.
This is just an assumption not 100% correct because only with the given IR data we cannot predict a molecule structure.
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