00:01
Hello students in the question there is a compound given let me draw it methyl here the is profile growth and here the triple one we have to write the systemic name for this compound there are some specific rules first what we have to do we have to select longest carbon chain including the triple bond we are naming alkyne so we will see the rules according to it so let me select the longest carbon containing chain having the triple bond so this is our longest carbon containing chain we find out so root word will be opt the root word for the carbon chain containing eight carbon atom is opt.
01:31
Now we have to see from where we will do the numbering so that the triple bond and all other substituents get the lowest possible number.
01:44
So we can clearly see if we start numbering from here the carbon containing double bond gots four number while if i start giving number from here one two three four whether from left -hand side or from right inside the triple bond gets the number 4.
02:09
Now we have to check the substituents.
02:12
We should number the chain from that side where the substitute will get the least number.
02:18
So if i start numbering the longest carbon chain from right -hand side, this is what? we have two substituents.
02:29
This is is is is a profile and this is methyl.
02:35
So, when i'm numbering the longest carbon containing chain from right inside, it gets number three and it gets number four.
02:49
While from left inside, it gets number five, isopropyl gets number five and methyl gets number six.
02:57
So we will number it from right inside so that all the substituents and the triple one gets the lowest possible number.
03:03
Let me draw it again here for the better understanding...