Williamson Ether Synthesis of Nerolin

Name: Naira Raquel Xilau TA: Elizabeth Hirst Date: 11/12/2012 williamson divinyl vinyl ether synthesis of nerolin In this experiment, it was performed the williamson ether synthesis of nerolin. Williamson ether reactions be reactions where an alkoxide reacts with a primary haloalkane or a suffonate ester. The reaction occurs through a SN2 mechanism. SN2 reactions are characterized by the inversion of stereochemistry at the site of the leaving group. Because the reaction is set in motion by the backside attack of the nucleophile, the nucleophile and the electrophile are in anti-configuration (chemwiki.org). Nerolin is part of a group of alkyl aryl ethers, compounds vastly return in the production of odours- most specifically as odor additives and scent fixatives. These scents include rose, lavender and lemon (prelab-notes). Calculation of assign take over Iodoethane (MW=155.97., d=1.940 g/ml) Amount utilize: 0.30 ml d=mv m= 1.940g/ml x 0.30 m l 0.582g| 0.5 g 2-naphthol .1 gram seawalleecule of 2-naphthol144.17g= 0.00347 mol of naphthol 0.582 g iodoethane .1 mol of iodoethane155.97g= 0.00373 mol of iodoethane KOH (MW=56.11.) 0.200 g KOH .1 mol of KOH56.11 g= 0.00356 mol of KOH attached the 1:1 stoichiometry of the reaction, 2-naphthol is the control reagent Theoretical yield = 0.

5 g Percent yield=actual yieldtheoretical yield .100%  0.3189 g0.5g .100% 63.8 %| goal A 63.8% yield of nerolin was recovered in the reaction of 2-naphthol and ethyl group iodide. Given the stoichiometry of the reaction being 1:1, 2-naphthol was found to be the limiting reagent. Since the percent yield was not very high, it is believable to assume that some errors m! ay occurred that contributed for the lower yield. Those errors may be caused by the incomplete dryness of the product, loss of product during reduction and wrong amount of reagents. If the experiment was to be repeated, more part would be necessary especially during extraction and measure of the reactants, in...If you fate to get a full essay, order it on our website: OrderEssay.net

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