Chemistry Help

wildon · 31st October 2009, 14:54

3-chloro 3-bromo hex-1-yne ?

Bass&Trouble · 31st October 2009, 16:27

Quote:

Originally Posted by The Wolf1

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!

trrk · 31st October 2009, 19:23

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!

Manoj2268 · 31st October 2009, 19:55

3-bromo-3-chlorohex-1-yne.

McLaren Rulez · 31st October 2009, 20:24

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

DocG · 1st November 2009, 04:35

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

jkdas · 1st November 2009, 10:29

Hehe, that was a brain stormer

What's next?

And when I studied they didnt haver Hex-yne

trrk · 2nd November 2009, 20:02

Hi Jk,

Quote:

Originally Posted by jkdas

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.

tsk1979 · 2nd November 2009, 20:48

Actually IUPAC is a savior. the non IUPAC names of organic compounds are impossible to remember.
And pranavt.. its not rocket science

trrk · 3rd November 2009, 19:32

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!

Technocrat · 3rd November 2009, 20:16

Thanks trrk for letting us know.

Thread Closed

31st October 2009, 14:54	#16
wildon BANNED Join Date: Jul 2007 Location: Bangalore Posts: 2,440 Thanked: 1,235 Times View My Garage	3-chloro 3-bromo hex-1-yne ? Last edited by wildon : 31st October 2009 at 14:55.
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31st October 2009, 19:23	#18
trrk Senior - BHPian Join Date: Feb 2004 Location: Alleppey, Kerala Posts: 2,114 Thanked: 34 Times View My Garage	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!
	() Thanks

31st October 2009, 19:55	#19
Manoj2268 BHPian Join Date: Jul 2008 Location: Delhi Posts: 301 Thanked: 435 Times	3-bromo-3-chlorohex-1-yne.
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31st October 2009, 20:24	#20
McLaren Rulez Senior - BHPian Join Date: Dec 2007 Location: Mysore Posts: 3,387 Thanked: 5,097 Times	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 Last edited by McLaren Rulez : 31st October 2009 at 20:27.
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1st November 2009, 04:35	#21
DocG BHPian Join Date: Nov 2007 Location: Mumbai - Singapore - Cali - Sydney - S.Korea Posts: 870 Thanked: 11 Times View My Garage	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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1st November 2009, 10:29	#22
jkdas Senior - BHPian Join Date: Sep 2005 Location: Thiruvananthapu Posts: 9,687 Thanked: 1,492 Times View My Garage	Hehe, that was a brain stormer What's next? And when I studied they didnt haver Hex-yne
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2nd November 2009, 20:48	#24
tsk1979 Team-BHP Support Join Date: Feb 2005 Location: San Jose, CA Posts: 23,717 Thanked: 22,823 Times View My Garage	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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3rd November 2009, 19:32	#25
trrk Senior - BHPian Join Date: Feb 2004 Location: Alleppey, Kerala Posts: 2,114 Thanked: 34 Times View My Garage	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!
	() Thanks

3rd November 2009, 20:16	#26
Technocrat Senior - BHPian Join Date: Feb 2004 Location: GTA Posts: 14,813 Thanked: 2,700 Times	Thanks trrk for letting us know. Thread Closed
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