Tuesday, May 7, 2019

Multiple Synthesis Lab Report Example | Topics and Well Written Essays - 1500 words

Multiple Synthesis - Lab Report ExampleThe Biltzs process of synthesizing phenytoin involves several steps, with each step forming a product that will be utilise in the next step. The process starts with the synthesis of benzil from benzoin, which then undergoes condensation catalysis by a seat with urea.The multistep synthesis of various natural products, most of which are used as medicine, is necessary because of the lack of by nature occurring starting materials, and also because of the reason that multistep synthesis allows for the modification of various functional groups in the medicine, thus change efficiency.1.3 grams of thiamine hydrochloride were dissolved in 4.0 mL of distilled water in a 50 mL Erlenmeyer flask. 1.5 mL of 95% ethanol was added to the flask and the mixture cooled in an ice water bath. 2.5 mL of 3.0M sodium hydroxide was added dropwise to the solution while swirling. The temperature of the reaction system was maintained at below 20C. While swirling the f lask, 7.5 mL of benzaldehyde was added to the flask and the mixture heated in a water bath at 50C for ten minutes. The flask was labeled and covered with a Parafilm and then displace in a pot hood for one week.The inside of the flask was gently scratched with a glass stir rod to race crystallization. Since no crystals formed, the stir rod was dipped into the liquid and removed, and then allowed to dry in air. The flask was placed in a water bath with a temperature of 60C to evaporate off rough ethanol and then cooled in an ice bath. The color of the solution was noted down.4.00 grams of the benzoin provided were added to a cxxv mL Erlenmeyer flask. The mixture was heated in a water bath in a green goddess hood until the mixture stopped producing brown-colored gas. The flask was then removed from the water bath and then 75.0 mL of distilled water added to the mixture. The mixture

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