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Chemistry Forums for Students => Organic Chemistry Forum => Topic started by: Eternal_Fire on March 02, 2025, 01:09:20 PM

Title: Termination step in free radical substitution
Post by: Eternal_Fire on March 02, 2025, 01:09:20 PM
Hi,
I have this question for my assignment and this is the only question I do not understand. I have attached it below.

Thanks.
Title: Re: Termination step in free radical substitution
Post by: Hunter2 on March 02, 2025, 01:17:59 PM
Which radicals do  you can develop from propane? Which is the more stable radical?
Then do a recombination of them.
Title: Re: Termination step in free radical substitution
Post by: Eternal_Fire on March 02, 2025, 01:22:21 PM
Do you mean this? How do I combine them?
Title: Re: Termination step in free radical substitution
Post by: Hunter2 on March 02, 2025, 01:29:24 PM
You misunderstood it.
How is bromination as radicals process takes place using propane instead of methane. Here there are no methyl or ethyl radicals.
Title: Re: Termination step in free radical substitution
Post by: Eternal_Fire on March 02, 2025, 01:35:47 PM
Like this?
Title: Re: Termination step in free radical substitution
Post by: Hunter2 on March 02, 2025, 01:39:26 PM
You skipped  some CH2 groups, but generally on the right Track.
You get only two kind of Propyl, no Ethyl.
Title: Re: Termination step in free radical substitution
Post by: Hunter2 on March 02, 2025, 02:20:45 PM
Which molecules you get?
Title: Re: Termination step in free radical substitution
Post by: Eternal_Fire on March 03, 2025, 07:44:17 AM
I only get this. Am I missing something?
Title: Re: Termination step in free radical substitution
Post by: Hunter2 on March 03, 2025, 08:10:45 AM
This could be one result, but it's not in the solution.
Why not have a radical on the second C.
Are primary radicals  more stable as secundary radicals?
Title: Re: Termination step in free radical substitution
Post by: Eternal_Fire on March 03, 2025, 12:46:34 PM
Is this correct now? The first compound in the solution cannot be formed, am I right?
Title: Re: Termination step in free radical substitution
Post by: Hunter2 on March 03, 2025, 12:57:04 PM
Yes you got it.