Draw the mechanism for the base-catalyzed transesterification of a vegetable oil using methanol
Draw the mechanism for the base-catalyzed transesterification of a vegetable oil using methanol
What is the mechanism for base-catalyzed transesterification with methanol where the ester reacts with an alcohol solvent to form a new ester that contains the alcohol's OR group? Please draw out mechanism and explain. the reaction will use the reagents XS NaOCH3 (from NaOH, CH3OH) to convert vegatable oil (a fatty acid triester) to glycerol and 3 moles of methyl oleate (biodiesel)
1.What is the significance of the acid number when using waste vegetable oil to synthesize biodiesel via base-catalyzed transesterification (waste vegetable oil acid number)? 2. how the precision of the instrument in a nonaqueous media in Biodiesel experiment (waste vegetable oil acid number)?
Draw the mechanism for the acid-catalyzed reaction of an amide with a methanol to form an ester. Draw the mechanism for the acid-catalyzed reaction of an amide with a methanol to form an ester Draw all missing reactants and/or products in the appropriate boxes by placing atoms on the canvas and connecting them with b be created. L2 NH NHH
B) Are the densities of methanol, vegetable oil, biodiesel, and glycerol consistent with the methanol layer floating on top of the vegetable oil and the glycerol layer resting beneath the biodiesel layer? Explain. glycerol density: (literature) methanol density: (literature B) Are the densities of methanol, vegetable oil, biodiesel, and glycerol consistent with the methanol layer floating on top of the vegetable oil and the glycerol layer resting beneath the biodiesel layer? Explain. glycerol density: (literature) methanol density: (literature
What are the products for the base-catalyzed transesterification reactions? 5. Predict the products for the following base catalyzed transesterification reactions. ОMe NaOH, ¡PrOH (-MeOH) NaOH, MeOH
Draw the mechanism for both reactions. The top reaction is Base Catalyzed Ester Hydrolysis and the bottom is Addition/Elimination Ester and Amide Mechanisms. H2O HOR HO 0 H,09
ochem 2nd semseter o 6) Acid catalyzed transesterification is a convenient method to exchange the alkoxy substituents of an ester. Draw a rational mechanism for the reaction shown below. 6 points. Use curved arrows and show all relevant intermediate(s), one pairs of electrons and formal charges where appropriate. HO H2SO4
PRELAB CALCULATIONS: When making biodiesel from virgin vegetable oil, a straight forward recipe is followed. For every 1L of vegetable oil, 0.2 L of methanol is added and 8.0 g of pure KOH. 1. In this lab we will starting with 250 mL of vegetable oil. Calculate the amount of methanol and pure KOH required to convert 250 mL of vegetable oil into biodiesel.
“Fun in acid” question: Draw a reaction mechanism using the curved-arrow formalism (include lone pair electrons) for the following transesterification of an ester into an alcohol and a methyl ester in the presence of acid in excess methanol. Hint: 6-steps. H+
3. (3p) Draw the mechanism and the expected transesterification reaction: OH H+ vior. OOHH. 4. (3p) Propose a synthesis for the following compound by using a Witting reaction: