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Old 31st October 2009, 14:54   #16
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3-chloro 3-bromo hex-1-yne ?

Last edited by wildon : 31st October 2009 at 14:55.
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Old 31st October 2009, 16:27   #17
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Quote:
Originally Posted by The Wolf1 View Post
Im a chemistry expert, the IUPAC name of the above is simple:

2braino-4goingo-6mentalo
hahahahahahahahaha!

If I remember my organic chemistry right, that certainly seems like the right answer!
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Old 31st October 2009, 19:23   #18
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Hi folks,

That was a question put to my daughter for her recent term examinations in Standard X.

Thank you all for the serious / not serious replies.

What she wrote as the answer was 3,3-BromoChloro hexyne and was judged as wrong. The correct answer according to her school is 3-Bromo-3-Chloro-Hexyne. Wheras a teacher from another school says that her version is correct.

My interest was to actually understand the correct name.

I really hope we don't have to resort to a poll as a backseatdriver suggests!
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Old 31st October 2009, 19:55   #19
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3-bromo-3-chlorohex-1-yne.
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Old 31st October 2009, 20:24   #20
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Sorry to hear she got marked wrong. As far as I know, 3,3-Bromochlorohexyne is accepted even though the official IUPAC says it must be 3-Bromo-3-Chlorohexyne. I learnt this in an IIT coaching camp, and they always maintained that either way was fine. But now that I think about it, IUPAC does make sure that there is one and only one name for any compound. So the school does have a point in marking her wrong.

And no, a poll is the last thing we should be having

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Old 1st November 2009, 04:35   #21
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1 thing I remember from having chemistry books flung at me in high school. Lol the aftermath of living with an Orgo chem PhD for a father

It's 3,3 ChloroBromo Hexyne
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Old 1st November 2009, 10:29   #22
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Hehe, that was a brain stormer

What's next?

And when I studied they didnt haver Hex-yne
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Old 2nd November 2009, 20:02   #23
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Hi Jk,

Quote:
Originally Posted by jkdas View Post
Hehe, that was a brain stormer
What's next?
And when I studied they didnt haver Hex-yne
Right now I can't think of anything else.

Folks,

Thanks for all the answers. From inputs here as well as from another list, the final understanding is that the official IUPAC version is the 3-Bromo-3-Chloro-hex-1-yne. Any other usage is not officially accepted.

Apparently 3,3 format was being used and evidently being taught also, but in this case she has lost out even though it may / could be used.

Thanks once again for helping me out.
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Old 2nd November 2009, 20:48   #24
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Actually IUPAC is a savior. the non IUPAC names of organic compounds are impossible to remember.
And pranavt.. its not rocket science
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Old 3rd November 2009, 19:32   #25
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Hi moderators,

Is it mandatory or customary to ask a thread to be closed / locked once the utility is over?

My query has been answered. The utility of the thread right now is over!
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Old 3rd November 2009, 20:16   #26
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Thanks trrk for letting us know.

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