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Their name is derived from the six-carbon, aromatic phenyl group and the three-carbon propene tail of coumaric acid, which is the central intermediate in phenylpropanoid biosynthesis. From 4-coumaroyl-CoA emanates the biosynthesis of myriad natural products including lignols (precursors to lignin and lignocellulose ), flavonoids , isoflavonoids ...
Phenylacetone, also known as phenyl-2-propanone, is an organic compound with the chemical formula C 6 H 5 CH 2 COCH 3. It is a colorless oil that is soluble in organic solvents. It is a mono-substituted benzene derivative, consisting of an acetone attached to a phenyl group. As such, its systematic IUPAC name is 1-phenyl-2-propanone.
Phenylpropenes broadly are compounds containing a phenyl ring bonded to propene, more specifically those with an allyl group bonded to a benzene ring, having the parent structure of allylbenzene. These comprise a class of phenylpropanoids , where there are typically other substituents bonded to the aromatic ring.
The elimination half-life of immediate-release phenylpropanolamine is about 4 hours, with a range in different studies of 3.7 to 4.9 hours. [6] [7] [4] The half-life of extended-release phenylpropanolamine has ranged from 4.3 to 5.8 hours. [4] The elimination of phenylpropanolamine is dependent on urinary pH.
This category includes chemical compounds that include a phenyl group, C 6 H 5 –. (That is, benzene with only one substituent or bond.) For benzene derivatives ( derivatives or structural analogs of benzene ) in which benzene has multiple substituents or bonds, see the parent category, Category:Benzene derivatives .
Phenylpropanoic acid can be prepared from cinnamic acid by hydrogenation. [5] [6] Originally it was prepared by reduction with sodium amalgam in water and by electrolysis.[7]A characteristic reaction of phenylpropanoic acid is its cyclization to 1-indanone.
Allylbenzene or 3-phenylpropene is an organic compound with the formula C 6 H 5 CH 2 CH=CH 2. It is a colorless liquid. The compound consists of a phenyl group attached to an allyl group. Allylbenzene isomerizes to trans-propenylbenzene. [3] In plant biochemistry, the allylbenzene skeleton is the parent (simplest representation) of many ...
Propionaldehyde may also be prepared by oxidizing 1-propanol with a mixture of sulfuric acid and potassium dichromate. The reflux condenser contains water heated at 60 °C, which condenses unreacted propanol, but allows propionaldehyde to pass. The propionaldehyde vapor is immediately condensed into a suitable receiver.