Comments on: Selectivity In Free Radical Reactions https://www.masterorganicchemistry.com/2013/09/23/selectivity-in-free-radical-reactions/ Fri, 18 Oct 2024 19:47:07 +0000 hourly 1 https://wordpress.org/?v=6.6.2 By: James Ashenhurst https://www.masterorganicchemistry.com/2013/09/23/selectivity-in-free-radical-reactions/#comment-712063 Fri, 18 Oct 2024 19:47:07 +0000 https://www.masterorganicchemistry.com/?p=7573#comment-712063 In reply to Aadity.

Greater selectivity of Br versus Cl. That’s why I wrote the article

]]> By: Aadity https://www.masterorganicchemistry.com/2013/09/23/selectivity-in-free-radical-reactions/#comment-711818 Thu, 17 Oct 2024 15:50:38 +0000 https://www.masterorganicchemistry.com/?p=7573#comment-711818 2-methyl propane on chlorination (Cl2, hv) gives 1-chloro-2-methyl propane while
bromination (Br2 , hv) gives 2-bromo-2-methyl propane majorly. why?

]]> By: James Ashenhurst https://www.masterorganicchemistry.com/2013/09/23/selectivity-in-free-radical-reactions/#comment-695679 Mon, 03 Jun 2024 16:52:18 +0000 https://www.masterorganicchemistry.com/?p=7573#comment-695679 In reply to KD.

Those products are certainly possible through radical chain termination pathways. I would expect them to be very minor so long as there is more than a molar equivalent of Cl2 and the concentration of propane is kept low.

]]> By: KD https://www.masterorganicchemistry.com/2013/09/23/selectivity-in-free-radical-reactions/#comment-695494 Sat, 01 Jun 2024 16:18:59 +0000 https://www.masterorganicchemistry.com/?p=7573#comment-695494 Thanks James!The post helped a lot. Please confirm whether I am correct about the side products of Chlorination of Propane,the side products are Hexane,2-methylpentane and 2,3-dimethylbutane.
A reply will be helpful for sure.

]]> By: jorge https://www.masterorganicchemistry.com/2013/09/23/selectivity-in-free-radical-reactions/#comment-581911 Sat, 04 Jul 2020 10:08:25 +0000 https://www.masterorganicchemistry.com/?p=7573#comment-581911 Is it propane?

]]> By: James Ashenhurst https://www.masterorganicchemistry.com/2013/09/23/selectivity-in-free-radical-reactions/#comment-579940 Wed, 06 May 2020 02:43:20 +0000 https://www.masterorganicchemistry.com/?p=7573#comment-579940 In reply to jorge.

Think about possible termination steps.

]]> By: jorge https://www.masterorganicchemistry.com/2013/09/23/selectivity-in-free-radical-reactions/#comment-579856 Sun, 03 May 2020 09:42:45 +0000 https://www.masterorganicchemistry.com/?p=7573#comment-579856 For the chlorination of propane in the presence of u.v light, what is the name of the longest possible
non-chlorinated alkane product that can form (as a side product).

]]> By: James Ashenhurst https://www.masterorganicchemistry.com/2013/09/23/selectivity-in-free-radical-reactions/#comment-572839 Tue, 10 Dec 2019 16:42:53 +0000 https://www.masterorganicchemistry.com/?p=7573#comment-572839 In reply to nickvon.

Chlorination is relatively non-selective, but bromination is quite selective. See this post. https://www.masterorganicchemistry.com/2013/10/31/selectivity-in-free-radical-reactions-bromine-vs-chlorine/

]]> By: nickvon https://www.masterorganicchemistry.com/2013/09/23/selectivity-in-free-radical-reactions/#comment-572815 Tue, 10 Dec 2019 06:44:01 +0000 https://www.masterorganicchemistry.com/?p=7573#comment-572815 why free radical reactions are non-selective?

]]> By: James Ashenhurst https://www.masterorganicchemistry.com/2013/09/23/selectivity-in-free-radical-reactions/#comment-556891 Tue, 25 Jun 2019 04:29:27 +0000 https://www.masterorganicchemistry.com/?p=7573#comment-556891 In reply to Shilpa.

You would get mixtures of replacement at C2, C3, and C4. There are twice as many hydrogens that would generate 2-chloropentane than would generate 3-chloropentane, so your dominant product would be 2-chloropentane, but you’d get a mixture of 1-chlropentane, 2-chloropentane, and 3-chloropentane.

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