Home Cart Sign in  
Chemical Structure| 133546-43-7 Chemical Structure| 133546-43-7

Structure of 133546-43-7

Chemical Structure| 133546-43-7

*Storage: {[sel_prStorage]}

*Shipping: {[sel_prShipping]}

,{[proInfo.pro_purity]}

4.5 *For Research Use Only !

{[proInfo.pro_purity]}
Cat. No.: {[proInfo.prAm]} Purity: {[proInfo.pro_purity]}

Change View

Size Price VIP Price

US Stock

Global Stock

In Stock
{[ item.pr_size ]} Inquiry {[ getRatePrice(item.pr_usd,item.pr_rate,item.mem_rate,item.pr_is_large_size_no_price, item.vip_usd) ]}

US Stock: ship in 0-1 business day
Global Stock: ship in 5-7 days

  • {[ item.pr_size ]}

In Stock

- +

Please Login or Create an Account to: See VIP prices and availability

US Stock: ship in 0-1 business day
Global Stock: ship in 2 weeks

  • 1-2 Day Shipping
  • High Quality
  • Technical Support
Product Citations

Alternative Products

Product Details of [ 133546-43-7 ]

CAS No. :133546-43-7
Formula : C10H4Br4O2
M.W : 475.75
SMILES Code : OC1=C(Br)C=C2C(Br)=C(O)C(Br)=CC2=C1Br
MDL No. :MFCD31710628

Safety of [ 133546-43-7 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-H335
Precautionary Statements:P261-P264-P270-P271-P280-P301+P312-P302+P352-P304+P340-P305+P351+P338-P330-P332+P313-P337+P313-P362-P403+P233-P405-P501

Application In Synthesis of [ 133546-43-7 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 133546-43-7 ]

[ 133546-43-7 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 132178-78-0 ]
  • [ 133546-43-7 ]
YieldReaction ConditionsOperation in experiment
51% With bromine;iron; In acetic acid; for 76h; Synthesis of 1,3,5,7-tetrabromo-2,6-dihydroxynaphthalene2,6-dihydroxynaphthalene (2 g, 12.5 mol) was dissolved in acetic acid (60 ml). The acetic acid was used as a solvent. Bromine (2.6 ml. 50.7 mol) was dripped in the solution, and reaction was carried out under a reflux temperature (120 C. to 125 C.).As is explained in the embodiment for carrying out the present invention, in this stage, first and fifth hydrogen atoms with a high reactivity among hydrogen atoms contained in 2,6-dihydroxynaphthalene were substituted by bromine atoms, and <strong>[132178-78-0]1,5-dibromo-2,6-dihydroxynaphthalene</strong> was merely produced. In order to obtain naphthodithiophene having a linear structure at last, it was further necessary to substitute the third and seventh hydrogen atoms with bromine.Next, bromine (2.6 ml) was further dripped into the reaction solution by five times at total, and iron powders (50 mg, 1.3 mol) as a catalyst were added thereto, and reaction was caused for 76 hours.Next, the reaction solution was cooled to a room temperature, and pure water (50 ml) was added thereto. A precipitated solid was separated and collected by filtering. This solid substance was rinsed by acetone, dried under a reduced pressure condition, thereby obtaining a rough product.The obtained rough product was caused to be recrystallized using 1,4-dioxane as a solvent, and purified. Accordingly, 1,3,5,7-tetrabromo-2,6-dihydroxynaphthalene (3.0 g, yield: 51%) with colorless needle crystals was obtained.As explained above, by dripping bromine several times and by adding iron powders as a catalyst, 1,3,5,7-tetrabromo-2,6-dihydroxynaphthalene was synthesized at a high yield.The reaction formula of the above-explained reaction is as follow. Various spectrum data of the obtained 1,3,5,7-tetrabromo-2,6-dihydroxynaphthalene are indicated below.1H-NMR (270 MHz, CDCl3) delta6.18 (s, 2H, OH), 8.31 (s, 2H, ArH); EIMS (70 eV) m/z=476 (M+)
 

Historical Records