4,7-Bis(2-bromo-5-thienyl)-2,1,3-benzothiadiazole
- CAS NO.:288071-87-4
- Empirical Formula: C14H6Br2N2S3
- Molecular Weight: 458.21
- MDL number: MFCD16619295
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-04-24 17:21:45
What is 4,7-Bis(2-bromo-5-thienyl)-2,1,3-benzothiadiazole?
Description
4,7-bis(5-bromothiophen-2-yl)benzo[c][1,2,5]thiadiazole is a red?monomer used for the synthesis of polymer semiconductors i.e.?PCDTBT in the application of photovoltaic solar cell devices.
The Uses of 4,7-Bis(2-bromo-5-thienyl)-2,1,3-benzothiadiazole
4,7-Bis(2-bromo-5-thienyl)-2,1,3-benzothiadiazole can be used as organic synthesis intermediates and pharmaceutical intermediates, mainly used in laboratory research and development processes and pharmaceutical and chemical production processes.
Synthesis
M4 (0.07 g, 0.233 mmol) was dissolved in 3.3 mLdry CHCl3 followed by addition of NBS (0.87 g, 0.489 mmol) at 0 °C.The reaction was conducted in dark by covering the flask withaluminium foil. The product was extracted with CHCl3 and thesolvent was evaporated to obtain crude product which was purifiedby silica gel column chromatography using 5% ethyl acetate/hexaneas eluent to obtain M5 as bright orange solid (0.101 g, 95%). Meltingpoint = 258 °C.
References
[1] Mai H, et al. Synthesis and characterization of donor–acceptor semiconducting polymers containing 4-(4-((2-ethylhexyl)oxy)phenyl)-4H-dithieno[3,2-b:2′,3′-d]pyrrole for organic solar cells. New Journal of Chemistry, 2020; 44: 16900-16912
Properties of 4,7-Bis(2-bromo-5-thienyl)-2,1,3-benzothiadiazole
Melting point: | 245.0 to 249.0 °C |
Boiling point: | 527.3±45.0 °C(Predicted) |
Density | 1.898 |
storage temp. | under inert gas (nitrogen or Argon) at 2–8 °C |
form | solid |
pka | -1.63±0.50(Predicted) |
color | Orange to Brown to Dark purple |
Safety information for 4,7-Bis(2-bromo-5-thienyl)-2,1,3-benzothiadiazole
Signal word | Danger |
Pictogram(s) |
Corrosion Corrosives GHS05 Skull and Crossbones Acute Toxicity GHS06 |
GHS Hazard Statements |
H301:Acute toxicity,oral H318:Serious eye damage/eye irritation |
Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. |
Computed Descriptors for 4,7-Bis(2-bromo-5-thienyl)-2,1,3-benzothiadiazole
New Products
COBALT AAS SOLUTION HYDROXYLAMINE HYDROCHLORIDE SOLUTION 10% THOMALIT BLUE LITMUS PAPER 1 BOX SILVER NITRATE N/10 CVS GLASS BEADS 3.5 TO 4.5 MM POTASSIUM AAS SOLUTION Azithromycin Imp D Atracurium Besylate EP Impurity C Ceftaroline fosamil Acetate Hydrate Clarithromycin EP impurity F Clarithromycin EP Impurity D Clindamycin BRelated products of tetrahydrofuran
You may like
-
4,7-Bis(5-bromo-2-thienyl)-2,1,3-benzothiadiazole CAS 288071-87-4View Details
288071-87-4 -
4,7-Bis(2-bromo-5-thienyl)-2,1,3-benzothiadiazole CAS 288071-87-4View Details
288071-87-4 -
Atracurium Besylate EP Impurity CView Details
86293-35-8 -
Azithromycin Imp DView Details
612069-26-8 -
Ceftaroline fosamil Acetate HydrateView Details
400827-55-6 -
Clarithromycin EP Impurity FView Details
128940-83-0 -
Clarithromycin EP Impurity DView Details
101666-68-6 -
Clindamycin Impurity BView Details
18323-43-8