From: Constantin Tanase (tanasec$##$ncpri.ro)
Date: Thu Jun 22 2000 - 06:53:02 EDT
Dear coleagues,
In the treatment of an alkene-diacid compound with 3 equiv. Hg(BF4)2 it
is formed an
lacton-acid compound (isolated and characterized by 1H- and 13C-NMR) by
participation of the closer COOH group. The disappearance of the
starting compound is relatively fast but after a few hours an abundant
precipitate is formed. I didn't isolate this
yet. Is it possible to be an internal Hg-complex, resulted by
substitution of a BF4-
group with the fre carboxyl group? I try to isolate it, but I'm afraid
that I couldn't analize it too quicly ?
In the similar reaction with a compound having CH2OH groups instead of
COOH groups this precipitate didn't appeared.
I contacted ORGLIST since 3 days. I wish an advise on this problem.
Sincerelly yours,
Tanase Constantin
Senior Scientist
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