Re: ORGLIST: methylation of a water-soluble polymer

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From: Jacob Zabicky (zabicky$##$bgumail.bgu.ac.il)
Date: Wed Sep 22 1999 - 03:28:30 EDT


Hello Eugene,

An alternative protocol could be that for the preparation of
methylcellulose, namely, treating the Na alcoholate of the polymer with
CH3Cl.

All the best,
Jacob

>>Hi,
>>
>>I'm trying to methylate an -OH - group containing water-soluble
>>polymer with diazomethane. I'm using the Diazald protocol
>>
>> http://home.twcny.rr.com/orangemidnight/diazomethane.html
>>
>>substituting methanol for ethanol (I don't have the latter at hand
>>right now).
>>
>>My polymer is virtually insoluble in ether. Is it possible to use
>>diazomethane in an ether/water solution/emulsion?
>>
>>TIA,
>>
>>Eugene
>

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Prof. Jacob Zabicky Tel. 972-7-6461271/6461062/6472754
Institutes for Applied Research Fax. 972-7-6472969
Ben-Gurion University of the Negev Private: POB 12366, Beer-Sheva 84863
POB 653, Beer-Sheva 84105, ISRAEL Tel. 972-7-6496792
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