Nohr-McDonald elimination reaction
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United States of America Patent
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Apr 3, 2001
Grant Date -
N/A
app pub date -
Feb 10, 1998
filing date -
Aug 5, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A reaction for eliminating a functional group alpha to a carbonyl group. The reaction can be used to dehydrate a compound having an alcohol group alpha to a carbonyl group by reacting the compound in a non-aqueous non-polar solvent in the presence of an effective amount of a transition metal salt, such as zinc chloride, such that the alcohol group is dehydrated. This Nohr-MacDonald Elimination Reaction produces a light stable compound, which can be added to compositions for light stabilization of a colorant. The modified compound may be combined with a wave-length selective sensitizer.
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