Please, see picture to know what reaction was done in this lab. Please note that

Question

Please, see picture to know what reaction was done in this lab. Please note that we stop once we obtained the imine as a product, which was done by o-vanillin with p-toluidine. So, there was no reduction done in this lab. Data Table: *Aldehyde used: o-vanillin *Mass of Aldehyde: 0.315 grams *Amine Used: p-toluidine *Required mass of amine: 0.22g based on calculation 0.315g * (1 mole/ 152.15g) * (107.15g/1 mole) = 0.22g *Actual mass of Amine= 0.23g *Final product (Imine) = 0.52 g Questions: Please, 1) What is the theoretical yield of imine (show calculation
2) Actual yield of imine 3) Percent yield of imine (show calculation)


Reductive Amination In this experiment a secondary aryl amine will be Reductive amination involves imine formation followed by reduction to can be performed in a stepwise fashion as in this experiment, b single step using less reactive reducin synthesized using reductive amination. the amine. The pr otocol ut can also be performed in a g agents such as sodium cyanoborohyride (NaBH3CN) or sodium triacetoxyborohydride (NaBH(OAc)s) Me Me H p-toluidine NaBH4 H20 OH OMe Imine OH OMe OMe o-vanillin Amine perimental gh 250 ma of the aldehyde and add it to a 250 mL flask. Calculate the amount ssary to react completely with the aldehyde and add it to the flask. Typically thi rformed in a 1:1 molar ratio of aldehyde to amine. Homogenize the mixture usi

Explanation / Answer

1) Theoretical yield = (mass of amine/ molecular weight of amine) x molecular weight of imine

= (0.23g/107.15g/mol) x 241.3 g/mol

=0.52g

2) actual yield of imine (as you have given) = 0.52g

3) percentage yield of imine= (0.52g /0.52g) x 100

= 100%

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