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110-02-1 - Thiophene, 99% - Thiofuran - A13941 - Alfa Aesar

A13941 Thiophene, 99%

Codice CAS
110-02-1
Sinonimi
Thiofuran

Dimensioni Prezzo ($) Quantità Disponibilità
50g 15,45
250g 27,60
500g 45,22
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Thiophene, 99%

MDL
MFCD00005413
EINECS
203-729-4

Proprietà chimiche

Formula
C4H4S
Peso formula
84.14
Punto di fusione
-38°
Punto di ebollizione
83-85°
Punto di infiammabilità
-9°(16°F)
Densità
1.066
Indice di rifrazione
1.5280
Solubilità
Miscible with ethyl alcohol, diethyl ether and other organic solvents. Immiscible with water.

Applicazioni

Thiophene is an important building block in dyes, agrochemicals and pharmaceuticals synthesis. It is involved in the chloroalkylation reactions in 2,5-positions. It is also used to prepare butane by reduction with raney nickel, 2-vinylthiophene, dithienyl, and 2-halo thiophenes by reacting with halogens.

Note

Incompatible with strong oxidizing agents and strong acids.

Letteratura

Metallation at the 2-position occurs readily with n-BuLi in ether (not readily in benzene). The 2,5-dilithio-derivative can be prepared in the presence of TMEDA: J. Chem. Soc., Perkin 1, 887 (1977), or with the superbasic combination of n-BuLi with KO-t-Bu: Synthesis, 316 (1988).

Smith, Z. C.; Meyer, D. M.; Simon, M. G.; Staii, C.; Shukla, D.; Thomas III, S. W. Thiophene-Based Conjugated Polymers with Photolabile Solubilizing Side Chains. Macromolecules 2015, 48 (4), 959-966.

Ghosh, T.; Gopal, A.; Saeki, A.; Seki, S.; Nair, V. C. p/n-Polarity of thiophene oligomers in photovoltaic cells: role of molecular vs. supramolecular properties. Phys. Chem. Chem. Phys. 2015, 17 (16), 10630-10639.

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H225-H331-H302-H312-H315-H319-H402-H412

Highly flammable liquid and vapour. Toxic if inhaled. Harmful if swallowed. Harmful in contact with skin. Causes skin irritation. Causes serious eye irritation. Harmful to aquatic life. Harmful to aquatic life with long lasting effects.

Dichiarazioni precauzionali: P210-P261-P273-P280-P303+P361+P353-P305+P351+P338-P304+P340-P311-P405-P501a

Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Avoid breathing dust/fume/gas/mist/vapours/spray. Avoid release to the environment. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Call a POISON CENTER or doctor/physician. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Altri riferimenti

Merck
14,9353
Beilstein
103222
Classe di rischio
3
Gruppo di imballaggio
II
Codice tariffe armonizzato
2934.99
TSCA
Yes
RTECS
XM7350000

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