Hello again,
Does this look right for
Hex-1-yn-4-one?
O
¨U
CH3 ¨C CH2 ¨C CH2 ¨C C ¨C CH2 ¨C CH3
Spacing is a REALLY big problem with computers and boards of this type so I can't tell where the carbonyl group is located.
First, should the yn you have be yne?
Second, if the is a derivative of a hexane, shouldn't there be 6 carbons and not 11?
Then the carbonyl group would be attached to carbon #4 counting from the left (to give the triple bond the #1 number).
Ooh, you're right, the spacing is rubbish. When I posted it in, it certainly didn't look like this...there WERE only 6 Carbons !! Anyway, I had CH3-CH2-CH2-C-CH2-CH3, with a double bond to an O with the C which is 4th from the left.
You foun the gremlin. The posts ALWAYS look ok until they are posted; THEN the gremlins take over and screw things up. The problem is that the boards, I suppose to conserve space, ignores all spaces on the space bar after the FIRST one.
What you have drawn is hexane-4-one. With the CH2 groups you have there is no space for a double bond (other than for the C=O) but there is nowhere to add a C=C in what you have drawn. If you want hex-1-yne-4-one I would draw it this way.
HC(triplebond)C-CH2-C(=O)-CH2CH3
I hope this helps.
line drawings are fairly easy to do. If I wanted to show an alcohol on #3 carbon I would draw it this way.
CH3CH(OH)CH3.
Based on your description, the correct structure for Hex-1-yn-4-one is:
O
||
CH3–CH2–C≡C–CH2–C=O–CH2–CH3
To verify this structure, you can follow these steps:
1. Start by identifying the number of carbon atoms in the molecule. In this case, you mentioned that it should be a derivative of hexane, so there should be 6 carbon atoms.
2. Place the triple bond on the first carbon atom (C#1), as indicated in the name "hex-1-yn-4-one."
3. Next, place the carbonyl group (C=O) on the fourth carbon atom (C#4), as mentioned in your description.
4. Fill in the remaining carbon atoms with single bonds and attach the appropriate number of hydrogen atoms to each carbon atom to satisfy the octet rule.
By following these steps, you should be able to draw the correct structure for Hex-1-yn-4-one.