Question

7:08 Molecule Project Assignment Descr... Assigament 6: Mechanism Correction On a page ticled Incorrest Mechanism print the incorect mechanism provided for your molecule on Blackboard. For the mechanisen you will focus on the reaction of the porticn of the molecule drawn only (not the R part) The molecule will be drawn with R groups so that you may ignore odher reactive parts of the molecule. In fact, it is essential that the R groups are ignored even if they may have an effect on the mechanism. This is not why the mechanism is incorrect For any corrections, diseegand the parts of your molecule represented by R-groups o Below the incorect mechanism wrise a discussion of the incomect mechanism identifying all of the mistakes in the mechanism. Keep in mind that there will be more than one mistake in the given mechanism and that the product given is not necessarily the correct prodact of the reaction of your molecule with the piven reagent oFor each mistake, give a detailed, scientific explanation of why it is incorect. oAll responses must be typed. No handwriten responses will be accepted On a page titled Correct Mechanism draw using a chemical drawing program or oher computer generated form, a correct mechanism to react your moleculle with the given reagent. Again, disregard any parts of the molecule represented by R-groups and focus on the given portion of the molecule. Be sure the corect mechanism amives at the comrect product of the reaction. The incorrect mechanism may or may not have the comect peodact. No handwritten structures will be accepted.

Answer 1

This is an example of addition of water to triple bond. For such addition of water, in 1st step H⁺ is abstracted by the triple bond and produce a carbocation and in 2nd step resting water molecule attack to that carbocation.

In the given reaction mechanism you can noticed in 1st step water molecule attack to the one of the carbon of triple bond and produce carbanion which is completely wrong. As 1st step is wrong then 2nd step automatically wrong as this carbanion abstract H⁺ from water.

The correct mechanism I have shown below :

- K R' el H0 Ho 0 R-=-R H2O' -5 I I Hoxh RAR