 Let's try some electrocyclicization reactions now. So let's try this four and plus two electrocyclicization reaction or the six electron electrocyclicization reaction The way I always remember it is I don't know something caught in my head a long time ago, but 6 HD like high definition and six is bigger than four, you know, so six HD Reminds me of the mechanism six electron heat dis so this is the six electron system Because this will be these pi electrons these and these are all going to rearrange It's light and not heat so it's going to be con Okay, so six like con because of six HD six Yes Okay, so what is con mean that means con rotatory so that means that Both of them are going to spin the same way So if that's the case since they're out like this Both of them are going to spin the same way, right? So one's going this one's going to spin up This one's out like this Out like that. It's going to spend it so we're going to Sacrifice one of our high bonds for that second to make that second six-member green so for that sigma bond our Mechanism is actually and so let's draw in our electron Like that and like that and like I said this is going to be calm So since they're both pointing out like this Both pointing out like this When we turn they're both going to turn the same way and when they do one's going to face towards us one's going to face away from us, okay, and You'll have to put plus it's an anti-mer Because of course it's an anti-mer That's it If it was heat on the other hand The mechanism would be the same But your product is going to be different because six electron light is con six electron heat is dis like 6 HD So they're going to turn Opposite ways so since they're both out They're both out right this one's going to turn this way Towards and this one instead of turning the same way is going to turn that way Towards it as well. So if we do this, we'll make the skeletal frame, but We'll make actually the What we call the miso compound here, so this is miso, so there's no anti-mer So again, just remember 6 HD. I think it's the easiest thing to do for my own sake. Okay