Process for labelling sulfur-containing compounds
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United States of America Patent
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Feb 13, 1990
Grant Date -
N/A
app pub date -
Oct 28, 1987
filing date -
Oct 28, 1987
priority date (Note) -
Expired
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Abstract
The invention thus provides a process for obtaining the preferential replacement by isotopes, of at least one of the hydrogen atoms selected from the group consisting of those attached to the .alpha.- or .alpha.'-carbon atoms in a compound containing the structural moiety (I) ##STR1## which comprises the steps of oxidizing the compound to the corresponding sulfoxide or sulfone which contains the corresponding structural moiety (II) ##STR2## wherein in the sulfoxide n is 1 and in the sulfone n is 2, effecting the isotopic replacement by a known method of said at least one hydrogen atom, and reducing the resultant isotope-labelled sulfoxide or sulfone to the correspondingly labelled compound containing the structural moiety (I).
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