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Topic: Alkene witch OH- group + HCl  (Read 1532 times)

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Offline xshadow

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Alkene witch OH- group + HCl
« on: November 20, 2019, 06:53:39 AM »
HI!!

I have a doubt with this exercise

 https://i.imgur.com/pkeC4YE.jpg

HCl can give:
Electrophilic addition on alkene
Substition witch alcohol

Here which path (A or B pr both)will occour?
Thanks!!
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Offline chenbeier

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Re: Alkene witch OH- group + HCl
« Reply #1 on: November 20, 2019, 07:17:26 AM »
Double bonds will be attacked easier as the hydroxyl group. So a will occur., but also possible would be the chlorine add as Markovnikov product.
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Offline xshadow

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Re: Alkene witch OH- group + HCl
« Reply #2 on: November 20, 2019, 11:08:54 AM »
Quote from: chenbeier on November 20, 2019, 07:17:26 AM
Double bonds will be attacked easier as the hydroxyl group. So a will occur., but also possible would be the chlorine add as Markovnikov product.

Hi!!

Why will the double bond protonation be easier?

- with double bond protonation (electrophilic addition)I'll get a carbocation

-with -OH protonation  I'll get a charged oxygen but with the octect full

So why  is the double bond C=C easier than the hydroxyl group one?!
Thaanks!!
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