So here in this example question, it says name the following alcohol compound. All right, so we're going to use the following steps in order to name this particular alcohol. Here step one says that we have to find the longest carbon chain. That longest carbon chain represents our parent chain, and we're going to assign a name according to the prefixes and now modifier.
Now the parent chain should include the OH group since we're talking about an alcohol and have the greatest number of carbons. Now if a tie exists between longest chain, choose the chain with more substituents. This one is pretty straightforward. Our longest chain we can see is this portion right here and we can see that the OH and the C LS actives are substituents. So this leads us into Step 2. Assign name to all the substituents.
All right, so here are chlorines would be chloro. The alcohol itself is going to be a modifier, so we don't have to name it here. Next we're going to say, start numbering the chain from the end closest to the OH group. If A tie, the number from the end closest to the next substituent if still a tie number in alphabetical order. Now assign numerical location to the carbon with the OH group.
So here we've identified the two substituents in terms of chlorine. We've looked at the longest chain we know that OH is going to be our functional group. That's going to modify the end of the name. So here we're going to repeat all the previous steps we've learned in terms of naming organic compounds, in particular alkanes, with their substituents. The same rules will apply here.
So here I've already numbered the chain for us. We're numbering it from this end one because going 1-2 we get to our first substituent. If we had numbered it from the other end, it would take us 123 before we get to a substituent. That takes too long. All right, so now let's finally name this. We're going to say here that A6 carbon chain is hexane. But remember the presence of the OH changes the ending from east to all, so it becomes hexanol.
We have to state on what carbon the Ohio is for the alcohol. It's on carbon 3, so this would be 3 hexanol. Remember we use a dash to separate numbers from letters. Next we said that these chlorines are chloro. There are two of them, so that would be dichloro. And finally, we have to stay on what carbons those two chlorines are found. They're found on carbons #2 and four, so this would be two dash 2, four dash dichloro, dash 3, dash hexanol SO24, dichloro 3 Hexanol will be the name of this particular alcohol compound.
