25121-88-4 Usage
General Description
2,3,5-tribromothieno[3,2-b]thiophene is a chemical compound that belongs to the class of organic compounds known as thienothiophenes. It is characterized by the presence of a thieno[3,2-b]thiophene moiety, which is a polycyclic aromatic compound made up of a thiophene ring fused to another thiophene ring at the 2- and 3-position. This particular compound is substituted with three bromine atoms at the 2, 3, and 5 positions of the thiophene ring. The bromine atoms increase the compound's reactivity, making it useful in chemical synthesis. Given its unique structure, it may also have potential as a building block in the pharmaceutical and material sciences industries. However, detailed information regarding its properties and applications is limited, suggesting that further research into this compound may be warranted.
Check Digit Verification of cas no
The CAS Registry Mumber 25121-88-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,1,2 and 1 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 25121-88:
(7*2)+(6*5)+(5*1)+(4*2)+(3*1)+(2*8)+(1*8)=84
84 % 10 = 4
So 25121-88-4 is a valid CAS Registry Number.
25121-88-4Relevant articles and documents
Thienothiophenes. Part 2. Synthesis, metallation and bromine→lithium exchange reactions of thieno[3,2-b]thiophene and its polybromo derivatives
Fuller, Lance S.,Iddon, Brian,Smith, Kevin A.
, p. 3465 - 3470 (2007/10/03)
Methods for the large-scale synthesis of thieno[3,2-b]thiophene [including a catalytic vapour-phase reaction (at 550°C) between 2-(2-thienyl)ethanol and carbon disulfide], its 2-carboxylic acid and its 3,6-dibromo and 2,3,5,6-tetrabromo derivatives are reported. With 2 mol equiv. of butyllithium thieno[3,2-6]thiophene gives its 2,5-dilithiated derivative and its 3,6-dibromo derivative gives the 3,6-dilithiated compound. By quenching with suitable electrophilic reagents these dilithiated compounds have been converted into various 2,5- or 3,6-disubstituted thieno[3,2-6]thiophenes, respectively. Likewise 2,3,5,6-tetrabromothieno[3,2-b]thiophene has been converted into 2,5-disubstituted 3,6-dibromothieno[3,2-b]thiophenes.
