00:01
In this problem, we're asked to synthesize each of these compounds starting with just acetylene.
00:05
Now, each of these compounds involve an r group being attached to the triple bond.
00:10
So all of them are going to start with the same steps.
00:12
So to save us time, i'm going to write those ones in green.
00:15
The first step will be reacting with sodium amide to deprotinate acetylene in one equivalent.
00:24
And the second step will be reacting with whatever r group we want attached to an iodide in one equivalent.
00:32
Now we can continue with each of these other syntheses.
00:36
For this one, we need to then reduce the acetylene down to an alkane, which is easily done by reacting with hydrogen and a platinum catalyst, just as we did with alkenes.
00:50
For reducing it down to just an alken, we have two choices.
00:54
We can either react with hydrogen and a poison catalyst like lindler's catalyst, or we can react with the dissolving metal...