Post-lab Question:
Using two TLC plate, one had to mark three spots 1cm above the bottom of the plate. If 3 UV active spots were in the crude material and co-spot TLC plate, and only one spot had the same Rf as the starting material and the other 2 are very different, predictions for the 2 non-starting material spots could be something in the middle of the mechanisms. There are four parts to the mechanism, so the second and third part of the mechanism would be the 2 non-starting material spots. This is due to the rate of the hydride attack on the carbon double bonded to the oxygen. It depends heavily on the R group present, and the more electron deficient it is, the faster the hydride can attack. But because they are different from the starting material spot, it would mean that it was caught somewhere in between and could not fully reduced and go to completion.
Comments
proofreading
In the last sentence, you used the word "reduced" however it doesn't agree with the rest of the sentence and when read aloud sounds awkward. You should replace it with "reduce".
Using two TLC plates, one had
Using two TLC plates, one had to mark three spots 1cm above the bottom of the plate. - This sentence is not clear, plate should be plural