Question

2) For the following alkyne preparation: a) Fill in the missing reaction components b) Provide a mechanism for both reactions c) Provide the IUPAC name of the alkyne product Br2 

          2) For the following alkyne preparation:
a) Fill in the missing reaction components
b) Provide a mechanism for both reactions
c) Provide the IUPAC name of the alkyne product
Br2
2) For the following alkyne preparation: a) Fill in the missing reaction components b) Provide a mechanism for both reactions c) Provide the IUPAC name of the alkyne product Br2

Added by Marc S.

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Chemistry: Structure and Properties
Chemistry: Structure and Properties
Nivaldo Tro 2nd Edition
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Transcript

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00:01 Hello students, hope you are doing great.
00:03 In this question we are given a reaction scheme and we have to write an arrow pushing mechanism for this particular reaction.
00:10 So let us start with the starting material with the mechanism of this reaction.
00:18 So here we are given an alkene which undergoes bromination.
00:26 So here we have bromine molecule.
00:30 These pi electrons will attack on this bromine atom and this bromide ion is removed from here.
00:36 After this there is a formation of three -membered ring like this.
00:43 So here we have br and there is a positive charge on this bromine.
00:48 In the next step the bromide ion which was removed from in the first step will attack on this carbon atom.
00:54 This bond will be broken and the electrons will move to bromine so that the positive charge on the bromine is stabilized.
01:00 Doing so we have here the formation of dibromo compound.
01:11 So here we have bromine, here we have bromine.
01:15 We also know that there are hydrogen present over here.
01:18 In the next step there is reaction with base...
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