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This is the answer to chapter 15, problem number 83 from the smith organic chemistry textbook.
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And this problem says pgf2a is synthesized in cells from arachidonic acid.
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So what are we actually asked here? okay, so we're asked to draw a stepwise mechanism for the conversion of a to pgg2.
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Okay, and we're giving a hint that the mechanism begins with radical addition to a carbon -carbon double bond.
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To form a resonance stabilized radical.
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Okay.
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And so that hint, oh dear.
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Okay, there we go.
00:45
Sorry about that.
00:46
So that hint that we're given is actually going to look like this.
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So the radical is going to come here.
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One of the electrons of this double bond will go here.
00:56
And the other electron will go there.
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Okay.
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And so after this first step, we have this.
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Just bear with me while i draw it.
01:21
Okay.
01:24
So after this first step, we have a five -membered ring here.
01:46
Okay.
01:47
And the bottom part of our molecule looks like this.
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Okay.
02:05
And so we now have the radical right here...