词条 | Difluoroacetic acid |
释义 |
| ImageFile = Difluoroacetic acid.svg | ImageSize = 200px | ImageAlt = | IUPACName = 2,2-Difluoroacetic acid | OtherNames = | Section1 = {{Chembox Identifiers | CASNo = 381-73-7 | PubChem = 9788 | ChemSpiderID = 10200426 | SMILES = C(C(=O)O)(F)F | InChI=1S/C2H2F2O2/c3-1(4)2(5)6/h1H,(H,5,6) | InChIKey=PBWZKZYHONABLN-UHFFFAOYSA-N | Section2 = {{Chembox Properties | C=2|H=2|F=2|O=2 | Appearance = | Density = 1.526 g/mL[1] | MeltingPtC = −1 | MeltingPt_ref = [1] | BoilingPtC = 132-134 | BoilingPt_ref = [1] | Solubility = | Section3 = {{Chembox Hazards | MainHazards = | FlashPt = | AutoignitionPt = }}Difluoroacetic acid is a chemical compound with formula CHF2COOH. It is a dihalogenocarboxylic acid, specifically a structural analog of acetic acid with two of three hydrogen atoms on the alpha carbon replaced with fluorine atoms. In solution, it dissociates to form difluoroacetate ions. Difluoroacetic acid can also be used as direct C-H difluoromethylating reagent.[2] See also
References1. ^1 2 {{cite web | url = http://www.sigmaaldrich.com/catalog/product/aldrich/142859?lang=en | publisher = Sigma-Aldrich | title = Difluoroacetic acid}} {{organohalide-stub}}2. ^{{cite journal| title = Difluoroacetic Acid as a New Reagent for Direct C-H Difluoromethylation of Heteroaromatic Compounds| journal = Chemistry - A European Journal|volume = 23| issue = 72| pages = 18125–18128| doi = 10.1002/chem.201704261 | pmid = 28945302|year = 2017|last1 = Tung|first1 = Truong Thanh| last2 = Christensen| first2 = Søren Brøgger| last3 = Nielsen| first3 = John}} 2 : Carboxylic acids|Organofluorides |
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