November 14, 2024, 01:48:26 AM
Forum Rules: Read This Before Posting


« previous next »
Pages: [1]   Go Down

Topic: High Order Elimination  (Read 3466 times)

0 Members and 1 Guest are viewing this topic.

Offline Dolphinsiu

  • Full Member
  • ****
  • Posts: 349
  • Mole Snacks: +3/-7
  • Gender: Male
High Order Elimination
« on: May 01, 2007, 06:02:40 AM »
What is it?

I only know E1, E2 (beta-elimination) and E1cb(conjugated base) (alptha elimination) ? Is E1cb belongs to high order elimination?
Logged

Offline PRIYA1022

  • Regular Member
  • ***
  • Posts: 61
  • Mole Snacks: +5/-2
Re: High Order Elimination
« Reply #1 on: May 01, 2007, 12:21:15 PM »
From my understanding, E1cb reactions follow first order kinetics.The first step which involves formation of a carbanion is fast , but the second elimination step from the carbanion is slow, hence rate limiting step.
Logged

Offline Dolphinsiu

  • Full Member
  • ****
  • Posts: 349
  • Mole Snacks: +3/-7
  • Gender: Male
Re: High Order Elimination
« Reply #2 on: May 05, 2007, 03:02:48 AM »
My notes have

Ph - CH2 - CH2 - CH2- Cl ---> 1,3-elimination + 1,2-elimination
                                             
                                      Ph - cyclopropane + Ph - CH2 - CH = CH2

But it is called Higher order elimination??
                         
Logged
Pages: [1]   Go Up
« previous next »
Sponsored Links