24162-63-8 Usage
General Description
2,4-dibromostyrene is a chemical compound with the molecular formula C8H6Br2. It is a colorless to pale yellow liquid that is insoluble in water but soluble in organic solvents. 2,4-dibromostyrene is used in organic synthesis as a building block for the preparation of various compounds, including pharmaceuticals, pesticides, and polymers. It is also used in the production of flame retardants and as a reagent in chemical reactions. Additionally, 2,4-dibromostyrene is a potential environmental contaminant and its use and disposal should be carefully managed to prevent harm to human health and the environment.
Check Digit Verification of cas no
The CAS Registry Mumber 24162-63-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,4,1,6 and 2 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 24162-63:
(7*2)+(6*4)+(5*1)+(4*6)+(3*2)+(2*6)+(1*3)=88
88 % 10 = 8
So 24162-63-8 is a valid CAS Registry Number.
InChI:InChI=1/C8H6Br2/c1-2-6-3-4-7(9)5-8(6)10/h2-5H,1H2
24162-63-8Relevant articles and documents
Copper-catalyzed recycling of halogen activating groups via 1,3-halogen migration
Grigg, R. David,Van Hoveln, Ryan,Schomaker, Jennifer M.
supporting information, p. 16131 - 16134,4 (2020/09/09)
A Cu(I)-catalyzed 1,3-halogen migration reaction effectively recycles an activating group by transferring bromine or iodine from a sp2 to a benzylic carbon with concomitant borylation of the Ar-X bond. The resulting benzyl halide can be reacted in the same vessel under a variety of conditions to form an additional carbon-heteroatom bond. Cross-over experiments using an isotopically enriched bromide source support intramolecular transfer of Br. The reaction is postulated to proceed via a Markovnikov hydrocupration of the o-halostyrene, oxidative addition of the resulting Cu(I) complex into the Ar-X bond, reductive elimination of the new sp3 C-X bond, and final borylation of an Ar-Cu(I) species to turn over the catalytic cycle.
