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Synthesis Projects

Synthesis Projects. Outline rest of quarter. S ynthesis projects (May 5 th - June 4 th ) No Lab, Tuesday, May 28 th ) ) Memorial day Tuesday, June 4 th at 6pm) ) Exam June 6 th ) ) Paint lab June 11 th ) ( checkout. What is the plan .

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Synthesis Projects

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  1. Synthesis Projects

  2. Outline rest of quarter Synthesis projects (May 5th- June 4th) No Lab, Tuesday, May 28th) ) Memorial day Tuesday, June 4th at 6pm) ) Exam June 6th) ) Paint lab June 11th)(checkout

  3. What is the plan 5 lab periods in which you choose 5 credits of lab work from experiments presented below You can do them in any order you wish. Prelap is due at the beginning of the lab you are working on Lab reports are due June 11th Making up missed lab

  4. Biodiesel from Algae (2 credits)

  5. Transestrification is the process of exchanging the alkoxy group of an ester compound by another alcohol. These reactions are often catalyzed by the addition of an acid or base

  6. Transesterification A chemical process by which triglyceride lipid fat molecules can be shattered into three molecules using methanol and a catalyst

  7. Transesterification Mechanism

  8. Biodiesel from Coffee Ground (1 credit) 2008 (University of Nevada) Researchers produced biodiesel from used coffee grounds. Analysis showed a 10% to 15% oil 

  9. Mystery compound X (2 credits) Hydrolysis of Anhydride followed by acid catalyzed reaction of carboxylic acid Unknown identification

  10. Aldol Condensation/Micheal 2credits)addition ( Aldol condensation is a powerful mean for forming c-c bonds in which the reaction combines two carbonyl compounds

  11. Aldol Condensation Mechanism

  12. Michael Addition Michael addition is a nucleophilic addition of a carbanion to unsaturated carbonyl compound Aldol condensation Michael addition dehydration

  13. Michael addition mechanism

  14. Indigo Lab (1 credit) Derived from the Plant Indigoferatinctoria Used in China and India for over 4000 years In 1865, German chemist Johann Friedrich Baeyer produced the first synthetic indigo

  15. Baeyer–Drewson indigo synthesis Aldol condensation reaction a good way to make c-c bonds

  16. Indigo Reaction Mechanism

  17. Azo Lab revisited (1 or 2 credit) Isolating the dye early, before it decomposes. Use Sodium Chloride to precipitate your dye Recrystallization of Dyeusing water, ethanol or acetone as solvent.   Testing Solvent effect of color using (acetone, methanol, water, methylene chloride)

  18. More Soap (1 or 2 credits) A process in which esters in fat are hydrolyzed with sodium or potassium hydroxide (NaOH or KOH) to produce the carboxylate anion which can act as a surfactant, i.e. soap

  19. Saponification Reaction

  20. Reminders for Today Take the pH of your soap Allow it to cure for 4-6 weeks. Soap lab is due next Tuesday The Unknown lab is due on Thursday Clean up sheet

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