Back ChemicalBook Home>CAS DataBase List>26448-34-0More Spectrum> 1,1,2,2-Tetrabromo-1,2-dihydrobenzocyclobutene(26448-34-0) 1H NMR
1,1,2,2-Tetrabromo-1,2-dihydrobenzocyclobutene(26448-34-0) 1H NMR
Product Name1,1,2,2-Tetrabromo-1,2-dihydrobenzocyclobutene
CAS26448-34-0
Molecular FormulaC8H4Br4
Molecular Weight419.73
InChIInChI=1S/C8H4Br4/c9-7(10)5-3-1-2-4-6(5)8(7,11)12/h1-4H
InChIKey KGUHYNBENFDCPK-UHFFFAOYSA-N
SmilesC12C(C(Br)(Br)C1(Br)Br)=CC=CC=2
parameter in CDCl3
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1H NMR 300 MHz C8 H4 Br4 ca 10-20 wt% in CDCl3 1,1,2,2-tetrabromo-1,2-dihydrobenzocyclobutene 
Parameter ppm Hz
D(A) 7.503 D(B) 7.303 J(A,A') 1.00 J(A,B) 7.76 J(A,B') 0.83 J(A',B) 0.83 J(A',B') 7.76 J(B,B') 7.60 COOPER,M.A. & MANATT,S.L. J.AM.CHEM.SOC. 92, 1605 (1970)
Hz ppm Int.2260.95 7.536 44 2259.16 7.531 66 2255.46 7.518 765 2252.50 7.508 700 2249.85 7.499 638 2246.85 7.489 1000 2243.04 7.477 107 2241.46 7.472 81 2200.34 7.334 81 2198.76 7.329 107 2194.95 7.316 1000 2191.96 7.307 638 2189.30 7.298 700 2186.34 7.288 765 2182.64 7.275 66 2180.85 7.269 44