{{Chembox | ImageFile = C5H10PH.png | ImageSize = 112 | ImageAlt = | PIN = Phosphinane | OtherNames = Phosphacyclohexane |Section1={{Chembox Identifiers | CASNo = 4743-40-2 | ChemSpiderID = 121965 | PubChem = 138339 | InChI=1S/C5H11P/c1-2-4-6-5-3-1/h6H,1-5H2 | InChIKey = VXTFGYMINLXJPW-UHFFFAOYSA-N | SMILES = C1CCPCC1}} |Section2={{Chembox Properties | C=5|H=11|P=1 | MolarMass = | Appearance = colorless liquid | Density = | MeltingPt = | BoilingPtC = 118- 121 | Solubility = }} |Section3={{Chembox Hazards | MainHazards = | FlashPt = | AutoignitionPt = }} |Section8={{Chembox Related | OtherCompounds = Phosphorine, Phospholane, Phosphepane, Piperidine, Arsinane, Thiane, Silinane }} }}
'''Phosphinane''' is the organophosphorus compound with the formula (CH<sub>2</sub>)<sub>5</sub>PH. This colorless liquid is the parent member of a family of six-membered, saturated rings containing phosphorus. These compounds are mainly of academic interest. The ring adopts a flexible cyclohexane-like chair conformation.<ref name=Pencycl>{{cite encyclopedia|encyclopedia=Phosphorus-Carbon Heterocyclic Chemistry The Rise of a New Domain|year=2001|pages=463–483|title=Six-membered rings: Phosphinanes, Dihydro- and Tetrahydro-phosphinines|author=Michael J. Gallagher|doi=10.1016/B978-008043952-5/50012-7}}</ref>
Phosphinane can be prepared via the Arbuzov reaction of triethylphosphite and 1,5-dibromopentane followed by cyclization and reduction steps.<ref name=Pencycl/> Phosphinane can also be prepared by reduction of 1-chlorophosphinane, which in turn is obtained by the reaction of 1-phenylphosphinane and phosphorus trichloride.<ref>{{cite journal|title=Zur Spaltung tertiärer Phosphine. II|author=K. Sommer|journal=Zeitschrift für Anorganische und Allgemeine Chemie|year=1970|volume=379|pages=56–62|doi=10.1002/zaac.19703790110}}</ref>
==References== <references />
Category:Phosphorus heterocycles Category:Six-membered rings