Grundinformationen
- Standard-SMILES
BrCCCCCBr- InChIKey
IBODDUNKEPPBKW-UHFFFAOYSA-N- Summenformel
- C5H10Br2
- Durchschnittliche Molmasse
- 229,94 g/mol
- Monoisotopische Masse
- 227,91492452
Namen und Bezeichner
- Bevorzugter Name
- 1,5-Dibromopentane
- IUPAC
- 1,5-dibromopentane
- Lokaler Name
- 1,5-Dibrompentan
- Englischer Name
- 1,5-Dibromopentane
- Summenformel
- C5H10Br2
- Molmasse
- 229.94
Namen und Synonyme
Weitere Namen anzeigen
Datenbank-Bezeichner
- CAS
111-24-0- PubChem CID
- 8100
- DTXSID
DTXSID2049395- ChEMBL
CHEMBL3182198- UNII
- B8Q228QYS1
- EC Number
- 203-849-7
- Nikkaji
- J5.106C
Eigenschaften
Berechnete Struktureigenschaften
- XLogP
- 2,8
- Polarare Oberfläche (TPSA)
- 0 Ų
- H-Brücken-Donoren
- 0
- H-Brücken-Akzeptoren
- 0
- Frei drehbare Bindungen
- 4
- Schwere Atome
- 7
- Formalladung
- 0
- Komplexität
- 25,3
Experimentelle und physikochemische Eigenschaften
Physical Description
CBI
Light brown liquid; [Sigma-Aldrich MSDS]
Physikochemische Eigenschaften
- Schmelzpunkt
- -34 °C · -34 °C (lit.)
- Siedepunkt
- 110 °C/15 · 110 °C/15 mmHg (lit.)
- Dichte
- 1.688 g/mL · 1.688 g/mL at 25 °C (lit.)
- Dampfdichte
- 8 · 8 (vs air)
- Brechungsindex
- 20 · n20/D 1.512(lit.)
- Flammpunkt
- 230 °F · >230 °F
- storage temp.
- Sealed in dry,Room Temperature
- Löslichkeit
- Chloroform, Methanol (Sparingly)
- Aggregatzustand
- Liquid
- Farbe
- Clear colorless to yellow-brown
- Wasserlöslichkeit
- insoluble
- BRN
- 1209245 · 1209245
- InChI
- 1S/C5H10Br2/c6-4-2-1-3-5-7/h1-5H2
- InChIKey
- IBODDUNKEPPBKW-UHFFFAOYSA-N
- SMILES
- BrCCCCCBr
- CAS Datenbank
- 111 · 111-24-0(CAS DataBase Reference)
- NIST chemische Informationen
- 1 · Pentane, 1,5-dibromo-(111-24-0)
- EPA chemische Informationen
- 1 · 1,5-Dibromopentane (111-24-0)
Sicherheit und Regulatorisches
GHS-Klassifizierung
GHS Classification
Warning
H302 (12.7%): Harmful if swallowed [Warning Acute toxicity, oral]
P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 55 reports by companies from 9 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Gefahrenhinweise
Regulatory Information
Chemical: Pentane, 1,5-dibromo-
Pentane, 1,5-dibromo- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Pentane, 1,5-dibromo- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Status: Active Update: 31-05-2018 https://echa.europa.eu/registration-dossier/-/registered-dossier/25661
1,5-Dibromopentane: Does not have an individual approval but may be used under an appropriate group standard
Sicherheitsdaten
- wgk
- 3
- tsca
- TSCA listed
- hs_code
- 29033036
- RTECS-Nr.
- SA0320000
- risk_code
- 36/38-22
- hazard_code
- Xi,Xn
- safety_code
- 23-26-36-37/39
- Speicherklasse
- 10 - Combustible liquids
- Hazard Classifications
- Eye Irrit. 2Skin Irrit. 2
Chemie und Industrie
Verwendung und Herstellung
General Manufacturing Information
All Other Basic Organic Chemical Manufacturing
Pentane, 1,5-dibromo-: ACTIVE
Anwendungen
Verwenden1,5-Dibromopentane is used in the preparation of 1,5-di-Grignard reagent and novel spirocyclic pyrrolidones. It acts as a growth supplement for Yarrowia lipolytica 3589, a tropical marine yeast. It is involved in the synthesis of N-alkylated piperidine as well as tetrydrothiopyran (thiane) by reaction with primary amine and sodium sulfide respectively.
Darstellung
synthetische1,5-Dibromopentane was obtained by ring-opening bromination of tetrahydropyran. In a 500ml flask, add 250g of 48% hydrobromic acid, 75g of concentrated sulfuric acid, 21.5g of redistilled tetrahydropyran (86.5-87.5°C fraction) in turn to a reflux condenser and heat the brown mixture gently to reflux for 3h. After cooling to room temperature, partition the lower layer of dibromide and wash each with saturated sodium carbonate solution and water once. Dried with anhydrous calcium chloride. Distill under reduced pressure and collect the 104-106°C (2.53 kPa) fraction as 1,5-dibromopentane in 46-47 g yield and 80-82% yield.1,5-Dibromopentane synthesis route
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