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Topic: drawing structures  (Read 17426 times)

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Offline fetusinprogress

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Re: drawing structures
« Reply #15 on: April 02, 2008, 01:40:08 PM »
so was the revised structure correctly showing cyclopentene oxide??

Offline Arkcon

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Re: drawing structures
« Reply #16 on: April 02, 2008, 02:01:36 PM »
so was the revised structure correctly showing cyclopentene oxide??

No, I don't like the double bond to the oxygen, that is a carbonyl- group, and it gives compounds names like, -dehyde and -one, see here:
http://en.wikipedia.org/wiki/Carbonyl, also check Borek:'s link, it's where I wanted you to go, anyway.  It is quite a common industrial chemical, so you should get to know it.
Hey, I'm not judging.  I just like to shoot straight.  I'm a man of science.

Offline fetusinprogress

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Re: drawing structures
« Reply #17 on: April 02, 2008, 02:12:28 PM »
ok--I think I got it---

how is this!

Offline fetusinprogress

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Re: drawing structures
« Reply #18 on: April 02, 2008, 02:54:57 PM »
would you mind looking over my other structures that i have worked on...
and thanks for your help...i do appreciate it....

Offline AWK

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Re: drawing structures
« Reply #19 on: April 03, 2008, 01:16:55 AM »
assign names for structures
cyclopentanone
cyclopentenone
cyclopentene oxide
AWK

Offline fetusinprogress

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Re: drawing structures
« Reply #20 on: April 03, 2008, 11:06:53 AM »
the bottom is cyclopentene oxide

Offline sjb

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Re: drawing structures
« Reply #21 on: April 03, 2008, 11:12:44 AM »
the bottom is cyclopentene oxide

Unfortunately, no.

Compare how the structure of ethylene oxide (from Borek and Arkcon's prod) compares to ethylene.

What does cyclopentene have in common with ethylene, and hence what is the structure of cyclopentene oxide?

Offline fetusinprogress

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Re: drawing structures
« Reply #22 on: April 03, 2008, 12:23:20 PM »
okay--i really think i may have the right idea now....


Offline fetusinprogress

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Re: drawing structures
« Reply #23 on: April 03, 2008, 12:24:47 PM »
the correct structure is the one to the far right..



???

Offline Arkcon

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Re: drawing structures
« Reply #24 on: April 03, 2008, 12:32:27 PM »
Great, now change that ethylene oxide into cyclopentene oxide -- what is the difference?
Hey, I'm not judging.  I just like to shoot straight.  I'm a man of science.

Offline sjb

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Re: drawing structures
« Reply #25 on: April 03, 2008, 12:34:59 PM »
the correct structure is the one to the far right..



???

Bravo! :)

Offline fetusinprogress

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Re: drawing structures
« Reply #26 on: April 03, 2008, 12:36:42 PM »
ethylene has 2 carbons where cyclopentene has 5

Offline fetusinprogress

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Re: drawing structures
« Reply #27 on: April 03, 2008, 12:37:51 PM »
can we work on my other structures?

Offline sjb

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Re: drawing structures
« Reply #28 on: April 03, 2008, 12:42:33 PM »
The others that you've drawn look OK too, I think.

Not sure about "trans-1,2-dibromopentane though". But that's not necessarily your fault - I can't really see how you get cis / trans forms there - have you copied the name right?

5 is essentially the same as 1, except you have -OH, not -Br. How are you doing for 6 & 7 ?

Offline fetusinprogress

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Re: drawing structures
« Reply #29 on: April 03, 2008, 12:47:43 PM »
I haven't attempted to finish with 6 and 7....I will do that right now.

thank you ~!

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