“…Further characteristic differences are shown by 6-H and 7-H; 8: 6-H at 6.58 ppm (dd, appearing as a pseudo t with J= 11 and 11 Hz, ß-position to the triple bond), 7-H at 5.66 ppm (d, J= 11 Hz); 9: 6-H at 6.77 ppm (dd,_/= 15 and 11 Hz), 7-H at 5.83 (d,J= 15 Hz). Asimilar influence of the C=C anisotropy on the chemical shifts of the olefinic protons of an yn-diene partial structure [relatively large downfield shift for the proton y to C = C in the (Z,E)-isomer and for ß in the (£,£)-isomer] was also observed for other alkamides (21,22). The isopentyl amide resonances are the usual ones (see 1).…”