Aldehyde

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. An aldehyde is an organic compound containing a terminal carbonyl group. This functional group, which consists of a carbon atom bonded to a hydrogen atom and double-bonded to an oxygen atom (chemical formula O=CH-), is called the aldehyde group. The aldehyde group is also called the formyl or methanoyl group. The word aldehyde seems to have arisen from alcohol...
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. An aldehyde is an organic compound containing a terminal carbonyl group. This functional group, which consists of a carbon atom bonded to a hydrogen atom and double-bonded to an oxygen atom (chemical formula O=CH-), is called the aldehyde group. The aldehyde group is also called the formyl or methanoyl group. The word aldehyde seems to have arisen from alcohol dehydrogenated. In the past, aldehydes were sometimes named after the corresponding alcohols, for example, vinous aldehyde for acetaldehyde. (Vinous is from Latin vinum = wine (the traditional source of ethanol), cognate with vinyl.). The aldehyde group is polar. Oxygen, more electronegative than carbon, pulls the electrons in the carbon-oxygen bond towards itself, creating an electron deficiency at the carbon atom. Owing to resonance stabilization of the conjugate base, an ?-hydrogen in an aldehyde is more acidic than a hydrogen atom in an alkane, with a typical pKa of 17.