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LittleBlackDress
10-10-07, 07:53 PM
(CH3)2C=C(CH3)OH

I posted it in another forum by accident. Hydroxyl group, methyl group, double carbon bond.
Enmos
10-11-07, 05:27 AM
My chemistry is a bit rusty but wouldn't that be 2-propylethanol ?

OK, very rusty... I don't know.
inzomnia
10-11-07, 05:54 AM
(CH3)2C=C(CH3)OH

I posted it in another forum by accident. Hydroxyl group, methyl group, double carbon bond.


I guess it is a prenol (3-methyl-2-buthenol):
http://en.wikipedia.org/wiki/Prenol
inzomnia
10-11-07, 06:01 AM
I guess it is a prenol (3-methyl-2-buthenol):
http://en.wikipedia.org/wiki/Prenol

wait, no
inzomnia
10-11-07, 06:02 AM
My chemistry is a bit rusty but wouldn't that be 2-propylethanol ?


also no, because the question contains double carbon bonds (alkene).

I forgot the name but I'll draw it.
Enmos
10-11-07, 06:04 AM
also no.

I forgot the name but I'll draw it.

I already figured I was wrong lol ;)
Enmos
10-11-07, 06:05 AM
I can trow another one in though, maybe someone will recognize it.. :shrug:

2-methyl-2-propylethanol (?)
inzomnia
10-11-07, 06:10 AM
it looks like this, but my chemical also a bit rusty, forget how to name it :shrug:


CH3------CH3
-----\----/
-----C=C
-----/----\
CH3------OH
inzomnia
10-11-07, 06:14 AM
I can trow another one in though, maybe someone will recognize it.. :shrug:

2-methyl-2-propylethanol (?)


I guess no, it should contain an alkene name (because of the double bond).
Like butanol --> butenol.
inzomnia
10-11-07, 06:57 AM
I guess it is a prenol (3-methyl-2-buthenol):
http://en.wikipedia.org/wiki/Prenol


oh, I was right, it is, 3-methly-2-buthenol, or popular name: prenol

-------CH3
--------|
CH3--C = CH--CH2
------------------|
------------------OH


prenol:

http://en.wikipedia.org/wiki/Prenol
inzomnia
10-11-07, 07:08 AM
My chemistry is a bit rusty but wouldn't that be 2-propylethanol ?

OK, very rusty... I don't know.


That one would be:


--------OH
--------|
CH3--CH--CH3

2-propanol (2 propylethanol)
inzomnia
10-11-07, 07:10 AM
I can trow another one in though, maybe someone will recognize it.. :shrug:

2-methyl-2-propylethanol (?)



and that would be:


--------OH
--------|
CH3--C--CH3
--------|
--------CH3
Enmos
10-11-07, 10:21 AM
it looks like this, but my chemical also a bit rusty, forget how to name it :shrug:


CH3------CH3
-----\----/
-----C=C
-----/----\
CH3------OH

Lol I know how it looks ;)
Enmos
10-11-07, 10:22 AM
That one would be:


--------OH
--------|
CH3--CH--CH3

2-propanol (2 propylethanol)

See the problem is that I forgot how the double bond is made clear in the name. :o
Shouldn't there be a double bond in there ?
Enmos
10-11-07, 10:26 AM
2-methyl-3-butanol ?
inzomnia
10-11-07, 10:33 AM
2-methyl-3-butanol ?


3-methyl-2-buthenol. Under IUPAC nomenclature, when there is both double
bonds and hydroxyl, the numbering is started from C that closer to the hydroxyl.
(I'm not so sure, though).

Btw, not butanol, but buthenol. The double bond shows it isn't an alkane but alkene.
inzomnia
10-11-07, 10:34 AM
Lol I know how it looks ;)


I have to draw it first to give the numbers and the position of alkyl :p
Enmos
10-11-07, 10:35 AM
2-methyl-3-butanol ?

Yes that's it, I'm certain now :)
Now for a common name...
Enmos
10-11-07, 10:36 AM
3-methyl-2-buthenol. Under IUPAC nomenclature, when there is both double
bonds and hydroxyl, the numbering is started from C that closer to the hydroxyl.
(I'm not so sure, though).

Btw, not butanol, but buthenol. The double bond shows it isn't an alkane but alkene.

Ok, yeah. Didn't know for sure.

So 3-methyl-2-buthenol it is. (not butanol ? Are you sure ?)
Enmos
10-11-07, 10:38 AM
Common name is Prenol :D
inzomnia
10-11-07, 10:38 AM
Also, in refers to chem formula in the OP:

(CH3)2C=C(CH3)OH

which is C5H10O, these may refer to:

Cyclopentanol
Methyl isopropyl ketone
Pentanal
2-Pentanone
3-Pentanone
Prenol = 3-methyl-2-buthenol
Tetrahydropyran


http://en.wikipedia.org/wiki/C5H10O

:D
inzomnia
10-11-07, 10:40 AM
Common name is Prenol :D

Exactly :D
LittleBlackDress
10-11-07, 04:15 PM
Thanks! So it definitely is an alkene, I knew that. 3-methyl-2-buthenol ... thanks again... It definitely seems right.
James R
10-11-07, 09:00 PM
It has a double bond, so it is definitely an alkene.
inzomnia
10-12-07, 05:04 AM
It has a double bond, so it is definitely an alkene.

yes yes and it is represented by the e in buthenol.
Nasor
10-12-07, 02:10 PM
(CH3)2C=C(CH3)OH

I posted it in another forum by accident. Hydroxyl group, methyl group, double carbon bond.
No one has pointed this out yet, but the molecule that you have asked about is very unlikely to exist. It’s an enol, which are not stable. Any time you have an alcohol OH group next to an alkene double bond it will usually rearrange to make a ketone.

And no, contrary to what some people here have said, it is not prenol. The molecule that you describe has a methyl group and a hydroxyl group both attatched to a double-bonded carbon. Prenol (3-methyl-2-buthenol) has a different strucure.
Nasor
10-12-07, 02:49 PM
What LittleBlackDress asked about:

CH3.........CH3
...... \ .... /
....... C=C
...... / .... \
CH3 ....... OH



Prenol:

CH3 ...... CH2-OH
...... \ .... /
...... C=CH
...... /
CH3
Enmos
10-12-07, 08:03 PM
What LittleBlackDress asked about:

CH3.........CH3
...... \ .... /
....... C=C
...... / .... \
CH3 ....... OH



Prenol:

CH3 ...... CH2-OH
...... \ .... /
...... C=CH
...... /
CH3

Hmm ok.
Do you know the structure and the name ?
andbna
10-12-07, 08:34 PM
Unless I'm mistaken, the names of Nasor's posted chemicals are:
3-methyl-2-buten-2-ol
and
3-methyl-2-buten-1-ol (ie Prenol)
respectivly

-Andrew
inzomnia
10-13-07, 05:01 AM
Actually I did already answer like this in post #8 and #10:

What LittleBlackDress asked about:

CH3.........CH3
...... \ .... /
....... C=C
...... / .... \
CH3 ....... OH



Prenol:

CH3 ...... CH2-OH
...... \ .... /
...... C=CH
...... /
CH3


but then I did not know the name for the first one (which littleblackdress
actually asked). It reminds me to a geometric isomer, only that one methyl
is replaced by -OH. I answer like that, but after around an hour I deleted the
post. The thing is, when I googling in wikipedia on C5H10O, the chemical
under the question does not exist. The closest one is prenol, so I thought
littleblackdress made a slight mistake in putting the bracket,
instead of (CH3)2C=CHCH2OH

(s)he wrote: (CH3)2C=C(CH3)OH


Unless I'm mistaken, the names of Nasor's posted chemicals are:
3-methyl-2-buten-2-ol
and
3-methyl-2-buten-1-ol (ie Prenol)
respectivly

-Andrew

I believe thats the name. :bravo:
Nasor
10-13-07, 11:04 AM
The thing is, when I googling in wikipedia on C5H10O, the chemical under the question does not exist.
I don't think it could exist. Most enols are unstable.
LittleBlackDress
10-13-07, 02:36 PM
Nazor is right. It was prenol. That is correct. My notation was incorrect. inzomnia's molecule is, I believe, correct.

CH3 ...... CH2-OH
...... \ .... /
...... C=CH
...... /
CH3

p.s. Maybe a blonde moment? I'm not a blonde though.. hmmm...