Re: bicyclic compounds
sounthna@plu.edu
Mon, 03 Mar 1997 10:17:28 -0800 (PST)
The [4.4.0] comes from the how many carbons there are on each end of the
molecue and the middle or bridging molecues. The first number represents
lets say the left side, the second represents the right side, and the last
represents the brigde or middle of a molecue. A good example is on page
139 problem 4.6(c). If you look at the left side there is one carbon, on
the right side there are two carbons and there is one carbon in the middle
or bridging the left and right side. So the name for problem 4.6(c) is
bycyclo[2.1.1]hexane. For problem 4.6(e) the name would be
2-methylbicyclo[2.2.2]octane. The left side has two carbons, the right
side has two carbons and the middle has two sticking up. Since the methyl
group is on one of the two carbon ends it's named 2-methyl. The book
tries to help you see this by bending the left and right side with
respects to the middle. Sorry for the long explanation but I hope that
helped
Nope
On Sun, 2 Mar 1997 weinmadj@plu.edu wrote:
>
> How do you classify a bicyclic and polycylic alkanes? For example, the
> name of decalin is bicylo[4.4.0]decane. Where does the [4.4.0] come
> from and how do you get it?
>
> David
>
>