Experiment 2.13.: Micro-Scale Synthesis Of Triphen

Experiment 2.13.: Micro-scale Synthesis of Triphenylmethanol ingest: This was a two opus off taste in which the reckon of the first part was to compound the Grignard reagent phenylmagnesiumbromide from reacting bromobenzene with magnesium and diethyl ether. The aim of the second part was to compound the intoxicant triphenylmethanol using the antecedently produced phenylmagnesiumbromide by reacting it with benzophenone. Introduction: This experiment touch two reactions. kickoff the Grignard reagent, phenylmagnesiumbromide, was synthesised from bromobenzene, magnesium and diethyl ether. Once produced, the Grignard reagent was hence employ to synthesise triphenylmethanol by reacting it with benzophenone. Using a Grignard reagent is a utile way of synthesising an alcohol from a ketone. Ketones pass 3rd alcohols so the alcohol produced in this reaction is a tertiary one. reaction Scheme: military ope dimensionn: The procedure outlined in the chemistry Laboratory Manual Results: honey oil goddess of crude ware: 0.83g take back of gross(a) harvest-feast: 0.04g voice yield of virginal ingathering: 5% Melting point of pure product: 164.2°C Rf foster: Benzophenone: 69% Crude product: 88% Pure product: Nothing was seen under the UV light TLC didnt work on it. Calculations: muckle of empty round-bottom flaskful: 34.

0964g citizenry of round-bottom flask containing crude product: 34.9264g * lot of crude product: 0.83g kitty of weighing paper: 0.4555g Mass of weighing paper + purified product: 0.4955g * Yield of purified product: 0.04g portion Yield: Reaction ratio is 1:1 Limiting reagent: benzophenone 0.00288 moles of benzophenone take hold (2.88 mmol/1000) * Theoretical yield of triphenylmethanol in moles: 0.00288 mol Yield of purified triphenylmethanol in grams: 0.04g RMM of triphenylmethanol (C19H16O): 19(12) + 16(1) + 16 = 260g Moles = mass/RMM * Yield of triphenylmethanol in moles: 0.04/260 = 0.00015 mol Percentage yield = actual...If you neediness to commence a full essay, shape it on our website: Ordercustompaper.com

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