2-Methylpropanal trimethylene acetal

    Parameter     ppm  Hz

      D(A)         3.60
      D(B)         3.99
      D(C)         1.96
      D(D)         1.24
       J(A,A')         0.0
       J(A,B)        -11.6
       J(A,B')         0.0
       J(A,C)         12.5
       J(A,D)          2.6
       J(A',B)         0.0
       J(A',B')      -11.6
       J(A',C)        12.5
       J(A',D)         2.6
       J(B,B')         0.0
       J(B,C)          5.0
       J(B,D)          1.3
       J(B',C)         5.0
       J(B',D)         1.3
       J(C,D)        -13.2
     
      D(E)         4.09
      D(F)         1.65
      D(G)         0.84
       J(E,F)          4.75
       J(E,G)          0.0
       J(F,G)          7.0
     
     BUYS,H.R. & ELIEL,E.L. TETRAHEDRON LETT. 32, 2779 (1970)