Re: ORGLIST: Neutralizing TLC plates?

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From: will jones (willjones46$##$hotmail.com)
Date: Tue Jun 05 2007 - 13:18:04 EDT


Brandon,

You aren't a relation to the legend Vogel, who wrote the best practical
organic chemistry book ever are you...?

Will

>From: "Brandon M. Vogel" <bvogel95$##$gmail.com>
>To: Ken Knott <esprcorn$##$hotmail.com>
>CC: everybody$##$orglist.net
>Subject: Re: ORGLIST: Neutralizing TLC plates?
>Date: Wed, 11 Apr 2007 23:12:11 -0400
>
>Ken Knott wrote:
> > I have a compound that I think may be degrading on TLC plates due to
> > the mild acidity.
> >
> > I would appreciate advice on how to neutralize TLC plates prior to
> > running them. I understand that this can be done with a 1% solution
> > of TEA in your eluent prior to running the compound? Can anyone offer
> > any suggestions or advice on doing this?
> >
> > Also, how might I make myself more certain that I am in fact
> > witnessing degradation of my compound as a result of running it on the
> > TLC?
> >
> > Thanks in advance!
> >
> > Ken
> >
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>You may try passivating the TLC plate with hexamethyl disilazane (HMDS)
>via a vapor treatment. This procedure will methylate the SiO2. Of
>course, you will also have to functionalize your SiO2 if you run a column.
>
>
>Brandon

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