Chemical Forums
1 Hour
1 Day
1 Week
1 Month
Forever
October 31, 2024, 08:58:26 PM
Forum Rules
: Read This Before Posting
Home
Help
Search
Login
Register
Chemical Forums
Chemistry Forums for Students
Organic Chemistry Forum
Wohl Degradation Reagent Inquiry
« previous
next »
Print
Pages: [
1
]
Go Down
Topic: Wohl Degradation Reagent Inquiry (Read 2514 times)
0 Members and 1 Guest are viewing this topic.
beardy
Regular Member
Posts: 42
Mole Snacks: +0/-0
Gender:
Wohl Degradation Reagent Inquiry
«
on:
November 27, 2015, 06:59:34 PM »
In Wohl degradation, one carbon is removed from a carbohydrate chain.
The following sequential reagents are mentioned:
1) NH
2
OH
2) acetic anhydride
3) NaOMe
Would acid chloride be an appropriate substitute for step 2?
My reasoning is that acid chlorides are more reactive than acetic anhydrides and should therefore work.
Logged
phth
Chemist
Full Member
Posts: 528
Mole Snacks: +39/-4
Re: Wohl Degradation Reagent Inquiry
«
Reply #1 on:
November 30, 2015, 05:27:03 AM »
Acid chlorides are more reactive, but acetic anhydride is easier to handle. The time of the reaction will vary.
Logged
Dan
Retired Staff
Sr. Member
Posts: 4716
Mole Snacks: +469/-72
Gender:
Organic Chemist
Re: Wohl Degradation Reagent Inquiry
«
Reply #2 on:
November 30, 2015, 07:14:26 AM »
The presence of acetate may speed up the nitrile formation step, depending on what the RDS is. If you use an acid chloride, the acetylation will be faster, but the elimination of acetic acid the will be slower.
Logged
My research:
Google Scholar
and
Researchgate
beardy
Regular Member
Posts: 42
Mole Snacks: +0/-0
Gender:
Re: Wohl Degradation Reagent Inquiry
«
Reply #3 on:
December 01, 2015, 02:04:18 AM »
Thanks
Logged
Print
Pages: [
1
]
Go Up
« previous
next »
Sponsored Links
Chemical Forums
Chemistry Forums for Students
Organic Chemistry Forum
Wohl Degradation Reagent Inquiry