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Topic: {drawing organic compound}  (Read 4382 times)

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Offline dubz

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{drawing organic compound}
« on: January 25, 2014, 10:19:05 AM »
Hi Guys!  I'm still an O-chem student and i'm having a problem in drawing this compound:

1-(2-methylcyclopropyl)propyne

i can't seem to draw it right..can anyone help me with this?  thanks in advance.

Mod Edit: actual useful title
« Last Edit: January 25, 2014, 04:25:11 PM by Arkcon »

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Re: Can anyone help me with this?
« Reply #1 on: January 25, 2014, 10:24:21 AM »
Show what you did so far, even if it is wrong.
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Offline dubz

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Re: Can anyone help me with this?
« Reply #2 on: January 25, 2014, 10:29:21 AM »


that's what i've done using ChemSketch but it gives a different name..

Offline discodermolide

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Re: Can anyone help me with this?
« Reply #3 on: January 25, 2014, 10:37:54 AM »
The name you gave suggests that propyne is the parent chain.
So start there.

CC#C[H]
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Offline dubz

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Re: Can anyone help me with this?
« Reply #4 on: January 25, 2014, 10:43:48 AM »
well, that's what i did but Chemsketch program named it otherwise.. :(

Offline discodermolide

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Re: Can anyone help me with this?
« Reply #5 on: January 25, 2014, 10:46:34 AM »
Starting with propyne see where you can add the cyclopropylmethyl group.
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Offline dubz

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Re: Can anyone help me with this?
« Reply #6 on: January 25, 2014, 10:58:21 AM »
well i did some more variations but still nothing..take a look





i don't know what's my mistake :(

Offline discodermolide

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Re: Can anyone help me with this?
« Reply #7 on: January 25, 2014, 11:00:50 AM »
The second structure is correct.
In the first one you attached the cyclopropylmethyl group to the wrong carbon atom.
CC#CC1C(C)C1

1-methyl-2-(prop-1-yn-1-yl)cyclopropane
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Offline dubz

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Re: Can anyone help me with this?
« Reply #8 on: January 25, 2014, 11:07:28 AM »
but i was looking for 1-(2-methylcyclopropyl)propyne ..Chem Sketch gave me a different one..are they the same?

Offline discodermolide

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Re: Can anyone help me with this?
« Reply #9 on: January 25, 2014, 11:13:06 AM »
Yes they are the same. These are from ChemDraw.
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Offline dubz

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Re: Can anyone help me with this?
« Reply #10 on: January 25, 2014, 11:15:12 AM »
okay, thanks a lot man..still need to study more about this stuff. gonna post some more questions soon :D

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Re: Can anyone help me with this?
« Reply #11 on: January 25, 2014, 11:18:01 AM »
No problem
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