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About: Phenylpropiolic acid     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : umbel-rc:ChemicalSubstanceType, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: Thingdul:ChemicalObjectchemical substanceChemical compoundyago:WikicatAromaticCompoundsyago:WikicatCarboxylicAcidsyago:Abstraction100002137yago:Acetylene114600742yago:Acid114607521yago:AliphaticCompound114601294yago:AromaticCompound114610088yago:CarboxylicAcid114739360yago:Chemical114806838yago:Compound114818238yago:Hydrocarbon114911057yago:Material114580897yago:Matter100020827yago:OrganicCompound114727670yago:Part113809207yago:PhysicalEntity100001930yago:Relation100031921chemical compoundyago:Substance100019613yago:WikicatAlkynesumbel-rc:ChemicalSubstanceType New Facet based on Instances of this Class

Phenylpropiolic acid, C6H5CCCO2H, formed by the action of alcoholic potash on , C6H5CHBrCHBrCO2H, crystallizes in long needles or prisms which melt at 136–137 °C. When heated with water to 120 °C, it yields phenylacetylene (C6H5CCH). Chromic acid oxidizes it to benzoic acid; zinc and acetic acid reduce it to cinnamic acid, C6H5CH=CHCO2H, whilst sodium amalgam reduces it to hydrocinnamic acid, C6H5CH2CH2CO2H. Ortho-nitrophenylpropiolic acid, NO2C6H4CCCO2H, prepared by the action of alcoholic potash on ortho-nitrocinnamic acid dibromide, crystallizes in needles which decompose when heated to 155–156 °C. It is readily converted into indigo.