OMe OMe OH HO HO- HO OMe H+ ong HO- HO OMe Pre-practical "MUST DO" to be included in your lab-book: 1. Calculate MW of all reagents, moles and theoretical yield 2. Reaction mechanism 3. Which is the limiting reagent? Why? 4. What is the role of trietylamine? 5. You are treating the TLC plate with 5% of sulfuric acid in ethanol. Look this up and briefly describe how it works

OMe OMe OH HO HO- HO OMe H+ ong HO- HO OMe Pre-practical "MUST DO" to be included in your lab-book: 1. Calculate MW of all reagents, moles and theoretical yield 2. Reaction mechanism 3. Which is the limiting reagent? Why? 4. What is the role of trietylamine? 5. You are treating the TLC plate with 5% of sulfuric acid in ethanol. Look this up and briefly describe how it works

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Based on TLC, how can you tell if the reaction is complete and what is the relevvance of the multiple marks in the lanes of the tlc? PROCEDURE To a six inch test tube was added thiamine hydrochloride (0.65 g), followed by water (2mL). The mixture was gently shaken until homogeneous, and then ethanol (7.5 mL)was added. Finally, sodium hydroxide (10%, 1.5 mL) was added and the mixture wasgently stirred to ensure complete mixing.Benzaldehyde (3.8 mL) was then added at room temperature in one portion with gentlestirring. The pH of the resulting reaction mixture was determined and adjusted to >10by dropwise addition of 10% sodium hydroxide. The reaction mixture was then partiallysubmerged in a 65 °C water bath2 and the progress of the reaction was periodicallymonitored by TLC analysis.Once TLC analysis indicated that the reaction was complete, the reaction mixture wascooled to approximately room temperature, and then chilled in an ice-water bath. Theresulting precipitate was collected by…
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