| 词条 | Isopropenyl acetate |
| 释义 |
| ImageFile =Essigsäureisopropenylester.svg | ImageSize = | ImageAlt = | IUPACName = | OtherNames = 1-Methylvinyl acetate |Section1={{Chembox Identifiers | CASNo = 108-22-5 | EINECS = 203-562-7 | PubChem = 7916 | ChemSpiderID = 7628 | SMILES = CC(=C)OC(=O)C | StdInChI = 1S/C5H8O2/c1-4(2)7-5(3)6/h1H2,2-3H3 | StdInChIKey = HETCEOQFVDFGSY-UHFFFAOYSA-N }} |Section2={{Chembox Properties | C=5|H=8|O=2 | Appearance = Colorless liquid | Density = 0.9090 g/cm3 (20 ºC) | MeltingPtC = -92.9 | BoilingPtC = 97 | Solubility = }} |Section3={{Chembox Hazards | MainHazards = | FlashPt = | AutoignitionPt = }} }}Isopropenyl acetate is an organic compound, which is the acetate ester of the enol tautomer of acetone. This colorless liquid is significant commercially as the principal precursor to acetylacetone. In organic synthesis, it is used to prepare enol acetates of ketones and acetonides from diols.[1] Preparation and reactionsIsopropenyl acetate is prepared by treating acetone with ketene.[2] Upon heating over a metal surface, isopropenyl acetate rearranges to acetylacetone.[3] CH2(CH3)COC(O)Me → MeC(O)CH2C(O)Me References1. ^{{cite encyclopedia|title=Isopropenyl Acetate|authors=Michael A. Walters, Melissa D. Lee|encyclopedia=Encyclopedia of Reagents for Organic Synthesis|year=2001|doi=10.1002/047084289X.ri077}} 2. ^Raimund Miller, Claudio Abaecherli, Adel Said, Barry Jackson "Ketenes" in Ullmann's Encyclopedia of Industrial Chemistry, 2001, Wiley-VCH, Weinheim. {{DOI|10.1002/14356007.a15_063}} 3. ^{{cite encyclopedia|encyclopedia=Ullmann's Encyclopedia of Industrial Chemistry|location=Weinheim |publisher=Wiley-VCH|first=Hardo|last=Siegel|first2=Manfred|last2=Eggersdorfer|title=Ketones|doi=10.1002/14356007.a15_077|date=2002}} 1 : Acetate esters |
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