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cis-7,8-dibromobicyclo(4.2.0)octa-1,3,5-triene

Product Name cis-7,8-dibromobicyclo(4.2.0)octa-1,3,5-triene

MFC8H6Br2

MW261.94

parameter in CDCl3

¹H NMR	300 MHz
C₈ H₆ Br₂	ca 10-20 wt% in CDCl₃
cis-1,2-dibromo-1,2-dihydrobenzocyclobutene

    Parameter     ppm  Hz

      D(A)         7.382
      D(B)         7.190
       J(A,A')         1.05
       J(A,B)          7.58
       J(A,B')         0.87
       J(A',B)         0.87
       J(A',B')        7.58
       J(B,B')         7.73
     
      D(C)         5.810
     
     COOPER,M.A. & MANATT,S.L. J.AM.CHEM.SOC. 92, 1605 (1970)
     FRAENKEL,G. ET AL. TETRAHEDRON 20, 1179 (1964)

     Hz     ppm     Int.

   2224.75   7.416     12
   2222.85   7.409     18
   2219.10   7.397    217
   2216.12   7.387    203
   2213.64   7.379    183
   2210.62   7.369    283
   2206.76   7.356     29
   2205.08   7.350     22
   2166.53   7.222     22
   2164.85   7.216     29
   2160.99   7.203    283
   2157.97   7.193    183
   2155.49   7.185    203
   2152.52   7.175    217
   2148.76   7.163     18
   2146.86   7.156     12
   1743.00   5.810   1000

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