Lab 10: Fall 2017-Planning an Organic chemistry lab esperiment 18 points Name: ·
ID: 571249 • Letter: L
Question
Lab 10: Fall 2017-Planning an Organic chemistry lab esperiment 18 points Name: · TA: Problem 1: Using any technique and chemical reaction(s) covered in CHE 201 this semester prepare compound B fron 3 mmoles of compound A. Compound A is very expensive and your planned reaction needs to be efficient (90 % or higher yield). PART A: 13 points (replaces data sheet, note book, performance and lab report points) 1. Plan and show your planned synthetic scheme in the Properties Mol weight 226 form of a reaction equation. 3 points Provide a detailed procedure (Preparation, PurificationMelting/Treering Poin 190, 16 226.8 2. 57 C 174 174c & Analysis). 10 points 1. Procedure should include quantities (with correct Boiling Point 267 C 372C 372 C stoichiometry) of chemicals required. 05 Solubility (grams in Solubility Solubility 0.7 2. Mention all the techniques that will be required.10 ml hot water) 3. Name all the glassware required. 4. Provide a data table, it should list all the reagents (grams in 10 ml hexane) 0.4 0.004 0.004 and the required quantities needed for the preparation and purification. Provide a flowchart for the planned synthesis. 1.5 0.4 0.34 (grams in 10 ml Acetone) 5. Complete worksheet Attach more sheets of paper as needed ART B: 5 points (replaces pre-lab quiz 10) sing curved arrows to designate the flow of electrons ovide a detailed stepwise mechanism for your planned ction(s). 11/10/2017 Ahsan-Riaz-CHE 201 Fall 2017-Lab 10-University at BuffaloExplanation / Answer
I am going to give some idea how to get started.
For the transformation of A to B it is simple ester hydrolysis reaction. Here ester is cyclic ester or called as lactones.
Basically, cyclic esters could be hydrolysed in presense of water either in acidic or baasic condition. In acidic condition, there is a chance for reverse reaction,and excess amout of water is needed that decreases the yield.
That's basic condition hydrolysis is the best choice.
So here for the transformation of A to B you need to take Aq NaOH solution.
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