[orgo814]

hey everyone,

how would i draw the structure for CH3CCH2CH2CH2CH3. There is an O double bonded to the second carbon atom (on the top).

Would this molecule be cyclic?

[discodermolide]

hey everyone,

how would i draw the structure for CH3CCH2CH2CH2CH3. There is an O double bonded to the second carbon atom (on the top).

Would this molecule be cyclic?

Here is the drawn structure of the molecule, and no it cannot be cyclic.

[orgo814]

thank you, that's what i thought. how do you know if a molecule can be cyclic so I know whether to draw it in a ring?

[Arkcon]

Try this: draw the above molecule as a ring, just connect the ends, and count the hydrogens in your drawn structure.  Then compare to the number you have.  That's one way.