Tropone dimethyl acetal

    Parameter     ppm  Hz

      D(A)         6.563
      D(B)         6.293
      D(C)         5.530
       J(A,A')        10.87
       J(A,B)          6.57
       J(A,B')         0.63
       J(A,C)          0.81
       J(A,C')         0.93
       J(A',B)         0.63
       J(A',B')        6.57
       J(A',C)         0.93
       J(A',C')        0.81
       J(B,B')         0.59
       J(B,C)         10.50
       J(B,C')        -0.55
       J(B',C)        -0.55
       J(B',C')       10.50
       J(C,C')         1.82
     
      D(D)         3.056
     
     GUENTHER,H. ET AL. ORG.MAGN.RESON. 6, 388 (1974)