00:01
This question asks us to show why a catacin is an antioxidant.
00:05
So, antioxidants are radical inhibitors, meaning they react with radicals to prevent the chain reaction that radical reactions cause.
00:14
And so in catechins, there are several oh groups that can take on the radical and lose their hydrogen, and then their radical will be stabilized by the structure.
00:24
So this is a catechin up here.
00:26
I'm going to show you how this can stabilize a radical.
00:29
So we'll start with an o radical on this carbon right here.
00:33
And we're going to move the radical around the aromatic structure here to show how it's stabilized.
00:40
So first, i can move this in here with one of these electrons from the double bond and put a radical on a carbon in the ring.
00:49
So then that'll give me a structure that'll look like this...