| 词条 | Propynal |
| 释义 |
| ImageFile = Propynal-2D-skeletal.png | ImageSize = 80 | IUPACName = Prop-2-ynal | OtherNames = Propiolaldehyde; Propiolic aldehyde | Section1 = {{Chembox Identifiers | CASNo = 624-67-9 | PubChem = 12222 | ChemSpiderID = 11721 | SMILES = C#CC=O | StdInChI= | StdInChIKey = | Section2 = {{Chembox Properties | C=3|H=2|O=1 | Appearance = | Density = | MeltingPtC = | BoilingPtC = 54-57 | Solubility = | Section3 = {{Chembox Hazards | MainHazards = | FlashPt = | AutoignitionPt = }}Propynal is an organic compound with molecular formula HC2CHO. It is the simplest chemical compound containing both alkyne and aldehyde functional groups. It is a colorless liquid with explosive properties.[1] The compound exhibits reactions expected for an electrophilic alkynyl aldehyde. It is a dienophile and a good Michael acceptor. Grignard reagents add to the carbonyl center.[1] Occurrence in interstellar mediumPropynal has been observed in the interstellar medium. It is hypothesized to be formed from a carbon monoxide-acetylene complex.[2] Another possible pathway is through the reaction of propynylidyne (C3H) with water.[3] HazardsThe compound is explosive, possibly because it tends to polymerize.[1] See also
References1. ^1 2 {{citation|surname1=P. Perlmutter|periodical=E-EROS Encyclopedia of Reagents for Organic Synthesis|chapter=Propargyl Aldehyde|date=2001|doi=10.1002/047084289X.rp262m|title=Encyclopedia of Reagents for Organic Synthesis|isbn=978-0471936237}} {{Molecules detected in outer space}}{{Authority control}}2. ^{{citation | last = Zhou | first = Li | author2 = Ralf I. Kaiser |title = Pathways to Oxygen-Bearing Molecules in the Interstellar Medium and in Planetary Atmospheres: Cyclopropenone (c-C3H2O) and Propynal (HCCCHO)| journal = The Astrophysical Journal | year = 2008 | volume = 686 | issue = 2 | pages = | doi = 10.1086/591072/meta |bibcode = |url = http://iopscience.iop.org/article/10.1086/591072/meta| doi-broken-date = 2019-03-16 }} 3. ^{{citation | last = Xie | first = Hong-bin | author2 = Chang-bin Shao |title = Radical-Molecule Reaction C3H + H2O on Amorphous Water Ice: A Promising Route for Interstellar Propynal| journal = The Astrophysical Journal | year = 2007 | volume = 670 | issue = 1 | pages = | doi = 10.1086/520757/meta |bibcode = |url = http://iopscience.iop.org/article/10.1086/520757/meta| doi-broken-date = 2019-03-16 }} 2 : Aldehydes|Alkynes |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。