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Help with difficult structures?

Need the structural (stick) formula for these molecules:

N-propylbutanamide

4-methylhexan-2-ol

butan-1 4-dioic acid

methyl methylamine

Need to name these molecules:

1)
O
||
CH3 CH2 CH2 C-NH CH3

2)

CH3
|
CH3 CH2 N CH3

3)

CH3COBr
O
||
CH3 C--OCH2CH3

3)

CH2OH
|
CHOH
|
CH2OH

Thanks
What have you got so far?
I've attempted these but I know they're incorrect
So? Your mistakes are important in learning how to rectify them :smile:

N-propylbutanamide


N-propyl = 3 carbon chain attached to a nitrogen
butan = 4 carbon chain
amide = err amide :p:

4-methylhexan-2-ol


4-methyl = a CH3 group attached at position 4
hexan = 6 carbon chain
2-ol = hydroxy group in the 2 position

that help at all?
Original post by EierVonSatan
So? Your mistakes are important in learning how to rectify them :smile:



N-propyl = 3 carbon chain attached to a nitrogen
butan = 4 carbon chain
amide = err amide :p:



4-methyl = a CH3 group attached at position 4
hexan = 6 carbon chain
2-ol = hydroxy group in the 2 position

that help at all?


Thanks. Is this right for N-propylbutanamide?
http://i46.tinypic.com/25plkdu.jpg
http://i50.tinypic.com/2ed8vo8.jpg 4-methylhexan-2-ol?
Original post by GaryGlobetrotter
Thanks. Is this right for N-propylbutanamide?
http://i46.tinypic.com/25plkdu.jpg


I explained that badly, sorry :colondollar:

Butanamide is CH3CH2CH2CONH2

The N-propyl bit replaces one of the N-H's above to become:

CH3CH2CH2CONHCH2CH2CH3



:yy:

butan-1 4-dioic acid


butan = 4 carbon chain

1,4-dioc acid = carboxylic acids at the 1 and 4 positions

methyl methylamine


Not sure if that's a valid name for something, do you mean dimethylamine?
Thanks again.

I'll ask my teacher about the 'methyl methylamine'.

Could you provide me with some of your guidance in naming the structures please?
Ahh, the positions messed up! -_-

Here they are: http://i45.tinypic.com/10xfpt3.jpg
Original post by GaryGlobetrotter
Could you provide me with some of your guidance in naming the structures please?


I can only make out the last one from your drawings :o:

It has a 3 carbon chain => propan
it has 3 alcohol groups => triol

As the OH's are on a different carbon each: propan-1,2,3-triol is the name :smile:

edit: ah okay

e) longest chain = ethan
it's an amine
there are 2 methyl groups attached to the nitrogen

f) longest chain = ethan
COBr = acyl bromide

g) it's an ester with two carbon chains, which are both ethan
(edited 11 years ago)
Original post by EierVonSatan
I can only make out the last one from your drawings :o:

It has a 3 carbon chain => propan
it has 3 alcohol groups => triol

As the OH's are on a different carbon each: propan-1,2,3-triol is the name :smile:

edit: ah okay

e) longest chain = ethan
it's an amine
there are 2 methyl groups attached to the nitrogen

f) longest chain = ethan
COBr = acyl bromide

g) it's an ester with two carbon chains, which are both ethan


Thanks!

Ok, so...

e) N-2methylethanamine

f) Acylethylbromide

g) Ethyl ethanoate

?
Original post by GaryGlobetrotter

e) N-2methylethanamine


Close. N,N-dimethylethanamine

The two N's indicate position (like numbers do) the di means there are two of them :smile:

f) Acylethylbromide


Ethanoyl bromide

g) Ethyl ethanoate


:yy:
Original post by EierVonSatan
Close. N,N-dimethylethanamine

The two N's indicate position (like numbers do) the di means there are two of them :smile:



Ethanoyl bromide



:yy:


Thanks for all of your help today. Rep given.
Original post by GaryGlobetrotter
Thanks for all of your help today. Rep given.


Welcome :yy:

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