6-Crotonoyl-3-methylbenzoxazol-2(3H)-one

    Parameter     ppm  Hz

      D(A)         7.02
      D(B)         7.89
      D(C)         7.80
       J(A,B)          8.1
       J(A,C)          0.0
       J(B,C)          1.5
     
      D(D)         6.91
      D(E)         7.11
      D(F)         2.01
       J(D,E)         15.1
       J(D,F)          0.0
       J(E,F)          5.6
     
      D(G)         3.45
     
     BARBRY,D. ET AL. ORG.MAGN.RESON. 19, 116 (1982)