From: Lakshmipathi Pandarinathan (plpathi$##$hotmail.com)
Date: Thu Mar 30 2006 - 13:19:03 EST
William Loffredo
Convert one of the acids to acid chloride and add the other acid to it with
or without a base (Dimethylamino pyridine would be a better choice). This
will give a near quantitative yield of mixed anhydride. If homo-anhydride
formation is observed (by the reaction of acid with mixed anhydride), then
playing with concentration or addition sequence/rate could give a better
results.
all the best
Pathi
----- Original Message -----
From: <everybody-request$##$orglist.net>
To: <everybody$##$orglist.net>
Sent: Tuesday, March 28, 2006 12:05 PM
Subject: Everybody Digest, Vol 19, Issue 22
> Send Everybody mailing list submissions to
> everybody$##$orglist.net
>
> To subscribe or unsubscribe via the World Wide Web, visit
> http://two.pairlist.net/mailman/listinfo/everybody
> or, via email, send a message with subject or body 'help' to
> everybody-request$##$orglist.net
>
> You can reach the person managing the list at
> everybody-owner$##$orglist.net
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Everybody digest..."
>
>
> Today's Topics:
>
> 1. A question (William Loffredo)
> 2. NaOCl quench (will jones)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 28 Mar 2006 08:46:21 -0500
> From: "William Loffredo" <wloffredo$##$po-box.esu.edu>
> Subject: ORGLIST: A question
> To: <everybody$##$orglist.net>
> Message-ID:
> <6B0269EF2D64E840894D3B044D6586F802514C5D$##$fang.admin.esu.edu>
> Content-Type: text/plain; charset="us-ascii"
>
> Hello Everyone,
> We are trying to synthesize a mixed anhydride in which one of
> the sides is lauric acid and the other a short chain acid. I am trying
> to locate a very viable synthetic procedure possibly using DCC or
> another coupling agent. Can anyone help me locate the specific
> literature sources? I would greatly appreciate it since the only two
> articles I could find are in Japanese and we are trying to get them
> translated.
>
> Please reply directly to me at wloffredo$##$po-box.esu.edu
>
> Dr. William M. Loffredo
> Department of Chemistry
> East Stroudsburg University
> East Stroudsburg, PA 18301
> (570) 422-3215
>
>
> -------------- next part --------------
> An HTML attachment was scrubbed...
> URL:
> http://two.pairlist.net/pipermail/everybody/attachments/20060328/ae7d5567/attachment-0001.html
>
> ------------------------------
>
> Message: 2
> Date: Tue, 28 Mar 2006 17:00:35 +0000
> From: "will jones" <willjones46$##$hotmail.com>
> Subject: ORGLIST: NaOCl quench
> To: everybody$##$orglist.net
> Message-ID: <BAY102-F2694A9B8070F43E9E4747BAED30$##$phx.gbl>
> Content-Type: text/plain; format=flowed
>
> hi guys
>
> Thanks for the suggestions on how to quench H2O2.
>
> Now for another quenching question. What is the best (and safest) way to
> quench NaOCl?
>
> I've seen urea used in a patent, but I'm concerned about NCl3 being
> produced. My solution to quench is about 1mL of 5% NaOCl, so this isnt an
> industrial problem. I just prefer to keep explosions out of the lab.
>
> Any suggestions welcome.
>
> Cheers for any help
>
> Will
>
>
>
>
> ------------------------------
>
> _______________________________________________
> ORGLIST - Organic Chemistry Mailing List
> Website / Archive / FAQ: http://www.orglist.net
> To post a message (TO EVERYBODY) send to everybody$##$orglist.net
> To unsubscribe, send to everybody-request$##$orglist.net the message:
> unsubscribe your_orglist_password your_address
>
> End of Everybody Digest, Vol 19, Issue 22
> *****************************************
>
_______________________________________________
ORGLIST - Organic Chemistry Mailing List
Website / Archive / FAQ: http://www.orglist.net
To post a message (TO EVERYBODY) send to everybody$##$orglist.net
To unsubscribe, send to everybody-request$##$orglist.net the message: unsubscribe your_orglist_password your_address
This archive was generated by hypermail 2.1.4 : Tue Feb 13 2007 - 14:17:01 EST