November 22, 2024, 10:44:06 AM
Forum Rules: Read This Before Posting


« previous next »
Pages: [1]   Go Down

Topic: Preparation of Alkyl Halides  (Read 6299 times)

0 Members and 1 Guest are viewing this topic.

Offline Sis290025

  • Full Member
  • ****
  • Posts: 206
  • Mole Snacks: +13/-17
  • Gender: Female
  • Thou shall not fall.
Preparation of Alkyl Halides
« on: November 09, 2006, 08:07:23 AM »
Explain why the aqueous washing of your alkyl halide product from the reaction of t-butyl alcohol with concentrated HCL must be carried out quickly.


Washing the product with aqueous NaOH would get rid of any traces of acid left by neutralizing it, but I don't understand what time has to do with the washings. Can anyone explain this to me?

Thank you.
Logged

Offline Dan

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 4716
  • Mole Snacks: +469/-72
  • Gender: Male
  • Organic Chemist
    • My research
Re: Preparation of Alkyl Halides
« Reply #1 on: November 09, 2006, 04:15:27 PM »
Quote from: Sis290025 on November 09, 2006, 08:07:23 AM
Washing the product with aqueous NaOH would get rid of any traces of acid left by neutralizing it, but I don't understand what time has to do with the washings. Can anyone explain this to me?

The hydroxide ion is a base, and so will neutralise the acid.
But hydroxide ion is also nucleophilic, how might this pose a problem?
Logged
My research: Google Scholar and Researchgate

Offline Sis290025

  • Full Member
  • ****
  • Posts: 206
  • Mole Snacks: +13/-17
  • Gender: Female
  • Thou shall not fall.
Re: Preparation of Alkyl Halides
« Reply #2 on: November 09, 2006, 04:54:50 PM »
R:X + OH- --> R:OH + :X-

An alcohol would result??
Logged

Offline Dan

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 4716
  • Mole Snacks: +469/-72
  • Gender: Male
  • Organic Chemist
    • My research
Re: Preparation of Alkyl Halides
« Reply #3 on: November 10, 2006, 04:20:18 AM »
Yup.
Logged
My research: Google Scholar and Researchgate

Offline AWK

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 7976
  • Mole Snacks: +555/-93
  • Gender: Male
Re: Preparation of Alkyl Halides
« Reply #4 on: November 10, 2006, 06:04:14 AM »
In the case of tertiary halides rather elimination takes place.
Logged
AWK
Pages: [1]   Go Up
« previous next »
Sponsored Links