Jul 5, 2009
221
0
Status
Pre-Dental
one of kaplan subj test explination about the alcohol dehydration is primary is slowest and the tertiary is the fastest...why is that? anybody could help?
 

joonkimdds

Senior Member
10+ Year Member
7+ Year Member
Jun 30, 2005
2,780
2
Status
Pre-Dental
That's becasue dehyration is removing OH and forming carbocation and you want to form most stable carbocation thus it's tertiary.
 

BiomajorPreDent

Senior Member
10+ Year Member
Dec 18, 2008
653
3
Status
Dental Student
Yeah dehydration of alcohols is E1 mechanism, and E1 and Sn1 use carbocation intermediates and tertiary carbocation is fastest