Crazy-GeneCoderz

Crazy-GeneCoderz

A Place for the budding Biotechnologist
 
HomeFAQSearchRegisterLog in
Latest topics
» Planning and scope
Mon Jun 22, 2009 2:26 pm by Vignesh

» MORE ABOUT SWINE FLU ........ BE AWARE n BEWAREE
Sun Jun 14, 2009 11:37 pm by Lathika

» At least 100 dead from swine flu worldwide
Sun Jun 14, 2009 11:35 pm by Lathika

» ...............SWINE FLU....................
Sun Jun 14, 2009 11:33 pm by Lathika

» Downloadable Text books : Biology
Tue Jun 09, 2009 9:25 pm by Vignesh

» A suggestion- Academic side
Tue Jun 09, 2009 8:07 pm by Vignesh

» World enviornment day on june 5th
Sat Jun 06, 2009 10:03 am by Vignesh

» Taxonomy Presentation
Mon May 25, 2009 3:44 pm by Vignesh

» The rise and diversification of the english language
Mon May 25, 2009 10:40 am by Arjun

Navigation
 Portal
 Index
 Memberlist
 Profile
 FAQ
 Search
Poll
July 2018
MonTueWedThuFriSatSun
      1
2345678
9101112131415
16171819202122
23242526272829
3031     
CalendarCalendar

Share | 
 

 more notesss

Go down 
AuthorMessage
Lathika
Webmaster
Webmaster
avatar

Number of posts : 58
Age : 27
Location : Ernakulam
Job/hobbies : Everything especially sleeping...eating...haa DANCING
Propz :
1 / 1001 / 100

Registration date : 2009-02-16

PostSubject: more notesss   Tue Feb 17, 2009 1:26 pm

The SN1 reaction



The SN1 reaction is a two-step reaction in which

  1. The leaving group leaves, forming a carbocation. This is
    the slow step, and so the rate is dependent only on the concentration
    of the substrate.
  2. The nucleophile attacks the carbocation. It can do this
    from either side, typically in a 50/50 ratio. Therefore about half the
    product has retained the original configuration, and about half is
    inverted.
  3. Protonated nucleophiles, such as methanol, then lose a proton to the solvent.






The SN2 reaction



The SN2 reaction is a single-step
displacement of a leaving group by a nucleophile. During the transition
state, the bond to the nucleophile forms at the same time that the bond
to the leaving group breaks. Therefore the nucleophile is required to
approach from the back, and configuration at carbon is inverted.

Back to top Go down
View user profile
 
more notesss
Back to top 
Page 1 of 1

Permissions in this forum:You cannot reply to topics in this forum
Crazy-GeneCoderz :: Academic :: Chemistry-
Jump to: