2-Bromthiophen
2-Bromothiophene
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Grundinformationen
- CAS
1003-09-4- Standard-SMILES
Brc1cccs1- InChIKey
TUCRZHGAIRVWTI-UHFFFAOYSA-N- Summenformel
- C4H3BrS
- Durchschnittliche Molmasse
- 163,04 g/mol
- Monoisotopische Masse
- 161,9138832
Namen und Bezeichner
- Bevorzugter Name
- 2-Bromothiophene
- IUPAC
- 2-bromothiophene
- Lokaler Name
- 2-Bromthiophen
- Englischer Name
- 2-Bromothiophene
- Summenformel
- C4H3BrS
- Molmasse
- 163.04
Namen und Synonyme
2-BROMOTHIOPHENE1003-09-4Thiophene, 2-bromo-2-Thienyl bromideGFF929NUW7NSC 4456NSC-4456EINECS 213-699-4DTXSID40613892Thienyl bromideThiophene, 2bromoRefChem:467332
Weitere Namen anzeigen
2-BromthiophenS0502DKIIRINDIP-020forTipepidineThienyl bromide2-bromo-thiophen2-Bromothiaphene
DTXCID7032509213-699-4InChI=1/C4H3BrS/c5-4-2-1-3-6-4/h1-3Thiophene, bromo-Bromothiophene2-bromo-thiophene2-bromo thiopheneMFCD00005417
Datenbank-Bezeichner
- CAS
1003-09-4、60326-18-3- PubChem CID
- 13851
- DTXSID
DTXSID4061389- UNII
- GFF929NUW7
- EC Number
- 213-699-4
- Nikkaji
- J101.470F
Eigenschaften
Berechnete StruktureigenschaftenWird ergänzt
- XLogP
- 2,8
- Polarare Oberfläche (TPSA)
- 28,2 Ų
- H-Brücken-Donoren
- 0
- H-Brücken-Akzeptoren
- 1
- Frei drehbare Bindungen
- 0
- Schwere Atome
- 6
- Formalladung
- 0
- Komplexität
- 46,8
Experimentelle und physikochemische Eigenschaften
Chemical ClassesOther Classes -> Thiophenes
SpringerMaterials PropertiesSchoenflies notation
LogP2.75
Physical DescriptionClear slightly brown liquid with a stench; [Acros Organics MSDS]
Physikochemische Eigenschaften
- Schmelzpunkt
- -10 °C · -10 °C
- Siedepunkt
- 149 · 149-151 °C (lit.)
- Dichte
- 1.684 g/mL · 1.684 g/mL at 25 °C (lit.)
- Brechungsindex
- 20 · n20/D 1.586(lit.)
- Flammpunkt
- 140 °F · 140 °F
- storage temp.
- 2 · 2-8°C
- Aggregatzustand
- Liquid
- Wichte
- 1.684 · 1.684
- Farbe
Sicherheit und Regulatorisches
Sicherheitsangaben dienen nur zur Orientierung und ersetzen weder das Sicherheitsdatenblatt (SDB) des Lieferanten noch geltende Vorschriften oder eine fachliche Bewertung.
GHS-Klassifizierung
GHS Classification
Danger
H226 (100%): Flammable liquid and vapor [Warning Flammable liquids]
P210, P233, P240, P241, P242, P243, P260, P262, P264, P264+P265, P270, P271, P280, P284, P301+P316, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P305+P354+P338, P316, P317, P320, P321, P330, P332+P317, P337+P317, P361+P364, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 78 reports by companies from 10 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Gefahrenhinweise
Regulatory Information
Status: Active Update: 03-05-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/20637
2-Bromothiophene: Does not have an individual approval but may be used under an appropriate group standard
Hazards SummaryAn irritant; Highly toxic by skin absorption; Harmful by ingestion and inhalation; Oral LD50 (rat) = 200-250 mg/kg; [Acros Organics MSDS] See 3,4-Dibromothiophene.
Hazard Classes and CategoriesFlam. Liq. 3 (100%)
Toxikologische Informationen
Toxicity DataLC50 (rat) = 1,040 mg/m3/4hr
Sicherheitsdaten
- F
- 8
- wgk
- 3
- tsca
- TSCA listed
Chemie und Industrie
Verwendung und Herstellung
General Manufacturing InformationThiophene, 2-bromo-: ACTIVE
Anwendungen
Verwenden2-Bromothiophene has been used in electrochemical reduction of a number of mono- and dihalothiophenes at carbon cathodes in dimethylformamide containing tetramethylammonium per chlorate by cyclic voltammetry and controlled-potential electrolysis.
Darstellung
synthetische2-Bromothiophene is synthesized by bromination of thiophene, which is achieved through the following steps: dissolve thiophene in acetic acid, and add bromine in glacial acetic acid solution below 10°C. Water was added to the reaction mixture to precipitate an oily liquid. Extract with ether. Add potassium carbonate to the extract to remove acetic acid, dry it, distill off the ether, and then conduct vacuum distillation to collect fractions at 42-46°C (1.73kPa) to obtain 2-bromothiophene with a yield of 55%.
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