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From Wikipedia, the free encyclopedia
In organic chemistry, a semicarbazone is a derivative of imines formed by a condensation reaction between a ketone or aldehyde and semicarbazide. They are classified as imine derivatives because they are formed from the reaction of an aldehyde or ketone with the terminal -NH2 group of semicarbazide, which behaves very similarly to primary amines.
For example, the semicarbazone of acetone would have the structure (CH3)2C=NNHC(=O)NH2.
Some semicarbazones, such as nitrofurazone, and thiosemicarbazones are known to have anti-viral and anti-cancer activity, usually mediated through binding to copper or iron in cells. Many semicarbazones are crystalline solids, useful for the identification of the parent aldehydes/ketones by melting point analysis.[1]
A thiosemicarbazone is an analog of a semicarbazone which contains a sulfur atom in place of the oxygen atom.
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