non-IUPAC names

[Sarahisme]

hey , i can't see why this is called

 

2-Methylethyl

 

or why it is then called ISOPROPYl

 

if someone has the time, could the please explain this too me ?

 

Thanks

 

Sarah

[BenSon]

Is it an Isomer of proane?

 

~Scott

[Sarahisme]

? i'm not sure ?

[BenSon]

That disgram confuses me I'm not familiar with that style.

 

is it something like this (add H's)

C

|

C-C

Its ethane with an mthyl and also an isomer of propane. What i don't get is the 2 in '2-Methylethyl' does it realy need to be there, I think theres only one position for the methyl and if there was two methyls wouldn't it be dimethylethyl?

 

~Scott

[Sarahisme]

yeah i was thinking something like that, but i am 90% sure what i've got is correct....i just don't know why...... :S

[scientistsahai]

That disgram confuses me I'm not familiar with that style.

 

is it something like this (add H's)

C

|

C-C

Its ethane with an mthyl and also an isomer of propane. What i don't get is the 2 in '2-Methylethyl' does it realy need to be there' date=' I think theres only one position for the methyl and if there was two methyls wouldn't it be dimethylethyl?

 

~Scott[/quote']

Well BenSon the structure you made was incorect so the wrong interpretation. The correct structure is

 

CH3-CH-CH~~~~

|

CH3

 

 

so if u look at it;it's pretty simple.

Count the no of C atoms and number it from the chain end locating the longest chain of C atoms.

You'll see that it has 1C atom at the 2nd position as a substituent.

So the name will be 2-methylpropyl(IUPAC) or isopropyl(common name)

 

The isopropyl gp is :

 

CH3-CH-

|

CH3

Hence the name.

[scientistsahai]

Well the structure is'nt coming as it shud

so i'll redraw it

 

CH3

|

CH -

|

CH3 ISOPROPYL GP.

[BenSon]

I follow you but it was originally named 2-methylethyl not propyl whats the difference structualy.

 

~Scott

[Sarahisme]

lol, whats with the avatar scientistsahai?

[BenSon]

Yeah thats quite a statement , so no avatar for you Sarah?

 

~Soct

[Sarahisme]

her breasts could be considered weapons in some countries....

[BenSon]

cough *fake* cough

 

~Scott

[Sarahisme]

Well the structure is'nt coming as it shud

so i'll redraw it

 

CH3

|

CH -

|

CH3 ISOPROPYL GP.

 

i see where the "prop" bit is coming from, but do not see where the methyl or "yl" bit is? does "yl" imnply that there is a triple bond somewhere?

[BenSon]

I can't find a triple bond here.

What i got so far the Isopropyl group is attached to something else on the 2nd carbon in the chain hence the "2". A methyl group it just a CH3 group attacked to a chain and a ethyl group is a CH3CH2 group on a chain. If we add these groups togeher we get, hence methylethyl.

CH3

|

CH2

|

CH3

 

Here the methyl group is in bold and the ethyl group in italics. Remove a H from the centre carbon (No 2) And it becomes 2-methylethyl.

CH3

|

CH-R

|

CH3

 

~Scott

[Sarahisme]

its weird kind of naming then isnt it? i mean its almost a completely different method than how it is normally done.... or at least it seems that way to me

[Sarahisme]

cough *fake* cough

 

~Scott

 

do guys actually like those kind of breasts? :S

[BenSon]

its weird kind of naming then isnt it? i mean its almost a completely different method than how it is normally done.... or at least it seems that way to me

 

Yeah it seems strange to me too but thats the best I can come up with. I find it strange how its name would go into other compounds. example

CH3

|

CH-OH

|

CH3

I guess this would be like 2-isopropyl alcohol but couldn't it be called 2-Propanol? Seems like a easyer name to me

 

~Scott

[BenSon]

do guys actually like those kind of breasts? :S

They look waaaaaay to fake to me but I'm sure others would prefer them...

 

~Scott

[Sarahisme]

Yeah it seems strange to me too but thats the best I can come up with. I find it strange how its name would go into other compounds. example

CH3

|

CH-OH

|

CH3

I guess this would be like 2-isopropyl alcohol but couldn't it be called 2-Propanol? Seems like a easyer name to me

 

~Scott

 

yeah i agree

[Sarahisme]

They look waaaaaay to fake to me but I'm sure others would prefer them...

 

~Scott

 

yeah my boyfriend is into some pornstar called briana banks or something, hang on i'll just check.....yep her,..... dunno apparently she has such large things aswell.... i don't quite understand but anywho

[BenSon]

yeah i agree

Well we started out all wrong, but I think we've got it now .

 

yeah my boyfriend is into some pornstar called briana banks or something, hang on i'll just check.....yep her,..... dunno apparently she has such large things aswell.... i don't quite understand but anywho

Haven't heard of her, but to each his own I guess...Can't say I'm opposed to large ones. It's just when they are totally fake its not a good thing.

 

~Scott

[Sarahisme]

i that comment isnt too inappropraite for these forums :S

[BenSon]

I what that coment?

 

~Scott

[Sarahisme]

Well we started out all wrong' date=' but I think we've got it now .

 

 

Haven't heard of her, but to each his own I guess...Can't say I'm opposed to large ones. It's just when they are [b']totally fake [/b] its not a good thing.

 

~Scott

 

oh havent heard of her,, eh? then who have you heard of? lol

[BenSon]

Dosen't matter, I wouldn't be surprised if this discussion is quickly sweeped under the rug by the mods

 

~Scott