Chemical Forums
Chemistry Forums for Students => High School Chemistry Forum => Topic started by: sapta on April 27, 2006, 12:24:49 PM
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what is the name of CH3OCH2CH3?
a. 2-oxapropane
b. 2-oxabutane
c. 2-oxobutane
what nomenclature is this? ???It should be methoxyethane,right?
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http://www.acdlabs.com/iupac/nomenclature/93/r93_430.htm
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great link :D so it's 2-oxabutane,right? But tell me,is this IUPAC nomenclature?I mean,what would I do if I am asked to give the IUPAC name of CH3OCH2CH3 with no options given?
Till now I thought it would be methoxy ethane.
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IUPAC basic nomenclature is according to functional class names, ie: ethyl methyl ether,
but also substitutive and replacement names are acceptable
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IUPAC basic nomenclature is according to functional class names, ie: ethyl methyl ether,
but also substitutive and replacement names are acceptable
ethyl methyl ether is also an IUPAC name? ??? but my books say it is the general name or something like that and the IUPAC name is methoxy ethane :-\
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see my link above - it is IUPAC document.
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How could it possibly be a butane if it only has 3 carbons?
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wierd question. I would call it ethoxymethane or methoxyethane or ethyl methyl ether.
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How could it possibly be a butane if it only has 3 carbons?
that's the same thing I thought ;D But as you can see from the link given by AWK,this is also a valid way of nomenclature,probably the latest.What I want to know is whether it is the most accepted now.For example,what would the answer to this question-
what is the IUPAC name of CH3CH2OCH2CH3?
A.Ethoxy ethane
B.Di ethyl ether
C.3-oxapentane
D.Methoxy butane
This question is given in a book.the first three options are all correct.So,which one is wanted?
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IUPAC?
Ethoxyethane ;)
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IUPAC?
Ethoxyethane ;)
Are you sure?Ethoxyethane is surely an IUPAC name.But according to AWK,all the first three options are IUPAC names.Diethyl ether is not considered an IUPAC name in our books,so we can put that aside.But what about 3-oxapentane?
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Ethoxyethane is an IUPAC name (R.5.5.4.1)
Diethyl ether is an IUPAC name (R.5.5.4.2)
3-oxapentane is an IUPAC name (R.5.5.4.3)
what is the IUPAC name of CH3CH2OCH2CH3?
A.Ethoxy ethane
B.Di ethyl ether
C.3-oxapentane
D.Methoxy butane
This question is given in a book.the first three options are all correct.So,which one is wanted?
If the question is EXACTLY as you typed it, then only C is the right answer. "Ethoxy ethane" should NOT have a space in it and "Di ethyl ether" should only have ONE space in it.
If the options are exactly as I typed them above, then A, B and C are all acceptable.
D is just plain wrong.
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sheesh... sounds like nit-picking on spelling ::)
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sheesh... sounds like nit-picking on spelling ::)
I don't mean to be a jerk, so sorry if it sounded that way.
I just figured that when there are three seemingly 'right' answers, there must be a trick stuck in somewhere. :P
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sheesh... sounds like nit-picking on spelling
Sounds more like good attention to detail to me.
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Ethoxyethane is an IUPAC name (R.5.5.4.1)
Diethyl ether is an IUPAC name (R.5.5.4.2)
3-oxapentane is an IUPAC name (R.5.5.4.3)
what is the IUPAC name of CH3CH2OCH2CH3?
A.Ethoxy ethane
B.Di ethyl ether
C.3-oxapentane
D.Methoxy butane
This question is given in a book.the first three options are all correct.So,which one is wanted?
If the question is EXACTLY as you typed it, then only C is the right answer. "Ethoxy ethane" should NOT have a space in it and "Di ethyl ether" should only have ONE space in it.
If the options are exactly as I typed them above, then A, B and C are all acceptable.
D is just plain wrong.
the question was ,in fact, given in another language(not English).I had to translate it and couldn't give proper attention to the number of gaps.In our language the gaps are not given enough importance which is no doubt wrong.So,considering the options to be those you typed first(the correct ones),which option is most acceptable- Diethyl ether,Ethoxyethane or 3-oxapentane?One thing I inform you is that Diethyl ether is NOT considered an IUPAC name in our books.
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thanks for noticing the wrong number of gaps.You got a great solution to my 'wrongly set' question ;)
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In my opinion, I repeat, the best answer is ethoxyethane.
Mind you, what was the original language?
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sheesh... sounds like nit-picking on spelling ::)
I don't mean to be a jerk, so sorry if it sounded that way.
I just figured that when there are three seemingly 'right' answers, there must be a trick stuck in somewhere. :P
i meant the way it was the book who posed the question in such a way, sorry :-\
it jsut reminds me of a question where the paper asked which formula for deuterium compounds was wrong; i tried to look for problems in the nomenclature, but in the end it was actually the missing of a subscript that made a particular compound wrong; it irks me that the books try to nitpick on small details quite unrelated to the original topic.
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In my opinion, I repeat, the best answer is ethoxyethane.
Mind you, what was the original language?
The language was Bengali.I hope you have heard its name.Anyway,I also think Ethoxyethane is the best answer.Thanks,all of you ;)
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I may try to impress you saying I can speak Bengali fluently...but it'd be a lie. ;D
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i thought it was an ether, an O bonded between 2 carbons. i can't ever remember any of those organic names. :P