C9H8O3

	C9H8O3 The molecular formula C9H8O3 (molar mass : 164.16 g/mol, exact mass : 164.047344) may refer to: * Caffeic aldehyde, a phenolic aldehyde contained in the seeds of ''Phytolacca americana'' * Coumaric acids ''o''-Coumaric acid ''p''-Coumaric acid ** ''m''-Coumaric acid * Phenylpyruvic acid Phenylpyruvic acid is the organic compound with the formula C6H5CH2C(O)CO2H. It is a keto acid. Occurrence and properties The compound exists in equilibrium with its E- and Z-enol tautomers. It is a product from the oxidative deamination of phe ... * Diformylcresol * Nadic anhydride {{MolFormIndex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	O-Coumaric Acid ''o''-Coumaric acid is a hydroxycinnamic acid, an organic compound that is a hydroxy derivative of cinnamic acid. There are three isomers of coumaric acids — ''o''-coumaric acid, ''m''-coumaric acid, and ''p''-coumaric acid — that differ by the position of the hydroxy substitution of the phenyl group. Natural occurrence ''o''-Coumaric acid can be found in vinegar Vinegar is an aqueous solution of acetic acid and trace compounds that may include flavorings. Vinegar typically contains 5–8% acetic acid by volume. Usually, the acetic acid is produced by a double fermentation, converting simple sugars to .... 2-Coumarate reductase is an enzyme that produces 2-coumarate from 3-(2-hydroxyphenyl)propanoate and NAD+. This enzyme participates in phenylalanine metabolism. References External links ''o''-Coumaric acid at www.phenol-explorer.eu Hydroxycinnamic acids Vinylogous carboxylic acids {{aromatic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	M-Coumaric Acid ''m''-Coumaric acid is a hydroxycinnamic acid, an organic compound that is a hydroxy derivative of cinnamic acid. There are three isomers of coumaric acid – ''o''-coumaric acid, ''m''-coumaric acid, and ''p''-coumaric acid – that differ by the position of the hydroxy substitution of the phenyl group. ''m''-Coumaric acid can be found in vinegar Vinegar is an aqueous solution of acetic acid and trace compounds that may include flavorings. Vinegar typically contains 5–8% acetic acid by volume. Usually, the acetic acid is produced by a double fermentation, converting simple sugars to .... References Hydroxycinnamic acids {{phenol-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Diformylcresol Diformylcresol is an organic compound with the formula CH3C6H2(CHO)2OH. The 2,6-diformyl derivative of ''p''-cresol is the most common isomer and is a white solid at room temperature. Diformylcresol condenses with amines to give diimines that are widely studied as binucleating ligands. Synthesis Formyl groups ( aldehydes) are fairly strong deactivating groups In electrophilic aromatic substitution reactions, existing substituent groups on the aromatic ring influence the overall reaction rate or have a directing effect on positional isomer of the products that are formed. An electron donating group (EDG) ... for electrophilic aromatic substitution reactions, hence double-addition to a phenol requires forcing conditions. Diformylcresol may be prepared from ''p''-cresol by the Reimer-Tiemann reaction or the Duff reaction. The corresponding reaction of phenol would be expected to lead to formylation of the 4-position vs 2,6-selectivity. Related compounds * salicylaldehyde, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Phenylpyruvic Acid Phenylpyruvic acid is the organic compound with the formula C6H5CH2C(O)CO2H. It is a keto acid. Occurrence and properties The compound exists in equilibrium with its E- and Z-enol tautomers. It is a product from the oxidative deamination of phenylalanine. When the activity of the enzyme phenylalanine hydroxylase is reduced, the amino acid phenylalanine accumulates and gets converted into phenylpyruvic acid (phenylpyruvate), which leads to Phenylketonuria (PKU). Preparation and reactions It can be prepared by many methods. Classically it is produced from aminocinnamic acid derivatives. It has been prepared by condensation of benzaldehyde and glycine derivatives to give phenylazlactone, which is then hydrolyzed with acid- or base-catalysis. It can also be synthesized from benzyl chloride by double carbonylation. Reductive amination of phenylpyruvic acid gives phenylalanine. See also * Phenylpyruvate decarboxylase * Phenylpyruvate tautomerase * Phenylketonuria Phenylketon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Caffeic Aldehyde Caffeic aldehyde is a phenolic aldehyde contained in the seeds of '' Phytolacca americana'' (American pokeweed). It is present in various parts of a large number of plants, such as the seeds of ''Phytolacca americana''. See also * Caffeic acid * Caffeyl alcohol Caffeyl alcohol is the organic compound with the formula (HO)2C6H3-4-CHCHCH2OH. This colourless solid is related to catechol by attachment to allyl alcohol. It is the precursor to one of the three principal lignols. Preparation and occurren ... References External links Knapsack Phenylpropanoids Conjugated aldehydes Catechols {{phenol-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]