00:01
First, to convert this fisher projection into a prospective formula, we will rank the groups coming off of the asymmetric center in increasing priority.
00:14
So a group with the highest priority will be our coo, since the oxygen, the carbon is directly bonded to two oxygens, and oxygens have a higher atomic number than hydrogens.
00:26
So these groups have carbon attached to hydrogens, so there will be lower priority.
00:31
Our next highest priority will be our ch2, ch3, next is our ch3 group, and lastly is our hydrogen, since hydrogen has the lowest atomic number, so it has the lowest priority.
00:42
Now if we draw arrows from 1 to 2, 2 to 3, it is in the counterclockwise direction, so that suggests that it is s configuration.
00:56
But there is a rule that states that since our lowest priority group, which is the hydrogen, is not on the vertical and it's on the horizontal, the configuration will be the opposite.
01:08
So in reality, it is our configuration.
01:14
Now that we know the configuration, we can convert the fisher projection into a prospective formula.
01:20
We will start with our carbon, which has asymmetric center in the middle...