Process for the preparation of nitroethene derivatives
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United States of America Patent
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-
Nov 6, 1990
Grant Date -
N/A
app pub date -
Apr 1, 1988
filing date -
Apr 6, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A new process for the preparation of the nitroethane derivatives, ranitidine and nizatidine, is described which takes place via intermediate products and enables the said compounds to be prepared with a higher degree of purity. Another advantage is that in contrast to the known processes, it is not accompanied by the liberation of the highly toxic and malodorous compound, methylmercaptan.
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