Chemical Forums
Chemistry Forums for Students => Organic Chemistry Forum => Topic started by: rtkt01 on September 14, 2009, 02:10:15 AM
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Here's the question.
Draw condensed structures for
2-methyl-3-ethylpentane.
2,2,4-trimethylpentane.
2,2,3,3-tetramethylpentane
3,4,4,5-tetramethylheptane
Here's what I got.
CH3CH2CH(CH2CH3)CH(CH3)2
(CH3)2CHCH2C(CH3)3
CH3CH2C(CH3)2C(CH3)3
CH3CH2CH(CH3)C(CH3)2CH(CH3)CH2CH3
There's another question.
Draw structural formula for a tertiary amine containing only secondary carbons
Y
N
/ \
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Is there anything wrong with my answers?
I'm still not completly sure about condensed structures.
CH3
l
Is it that I can write either CH3CCH2CH2CH2CH2CH3 or CH3C(CH3)2CH2CH2CH2CH2CH3 if question asks to draw c
l
CH3
ondensed structures for 2,2-dimethylheptane ?
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CH3
l
Is it that I can write either CH3CCH2CH2CH2CH2CH3 or CH3C(CH3)2CH2CH2CH2CH2CH3 if question asks to draw c
l
CH3
ondensed structures for 2,2-dimethylheptane ?
Well here in order to make more condensed structure you have to do the following:
Write this: CH3C(CH3)2CH2CH2CH2CH2CH3 ~~ CH3C(CH3)2(CH2)4CH3
Well here you have to count how many CH2 are there next to each other and write the way i wrote it..
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Well here in order to make more condensed structure you have to do the following:
Write this: CH3C(CH3)2CH2CH2CH2CH2CH3 ~~ CH3C(CH3)2(CH2)4CH3
Well here you have to count how many CH2 are there next to each other and write the way i wrote it..
Thank you for a reply.
How about my answers to 5 questions ? Did I get those correctly?
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Well the 1st 4 question are right ;)..but what about the 5th?! well i didn't get well the drawing, but are all the carbons 2o? as it seems N is 3o thats fine...although i'm not 100% sure for the 5th one :-\
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Well the 1st 4 question are right ;)..but what about the 5th?! well i didn't get well the drawing, but are all the carbons 2o? as it seems N is 3o thats fine...although i'm not 100% sure for the 5th one :-\
I think that an answer for the 5th question is tricyclopropylamine. Is that right?
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Both - triisopropyl- and tricyclopropyl- amines are good examples cocerning carbon atoms joined to nitrogen, but in fact tricyclopropylamine contains only secondary carbon atoms
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I think that an answer for the 5th question is tricyclopropylamine. Is that right?
Now its right :)..but what you drew was more like triisopropyl ;) in which not all the carbons were 2o..
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Thank you so much for replies.
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You're welcome :)
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How does this look ?
Question: Draw condensed structures for 10 of 75 consitituional isomers of C10H22, and give the IUPAC name for each structure you drew.
My answer:
CH3(CH2)8CH3 Decane
CH3(CH2)6CH(CH3)2 2-methylnonane
CH3(CH2)5CH(CH3)CH2CH3 3-methylnonane
CH3(CH2)4CH(CH3)CH2CH2CH3 4-methylnonane
(CH3CH2CH2CH2)2CHCH3 5-methlnonane
CH3(CH2)5C(CH3)3 2,2-dimethyloctane
CH3(CH2)4C(CH3)2CH2CH3 3,3-dimethyloctane
CH3(CH2)3C(CH3)2CH2CH2CH3 4,4-dimethyloctane
CH3(CH2)4CH(C2H5)CH2CH3 3-ethyloctane
CH3(CH2)3CH(C2H5)CH2CH2CH3 4-ethyloctane
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Well they are right :) but some places you can make it more condensed by writing CH2CH2 as (CH2)2..
and by the way it 5methylnonane..although I know that you have just forgotten to write that "y" ;)