反应详情

When in the general procedure of Example 71 an appropriate amount of 5-dodecyl-1H-tetrazole was substituted for 5-decyl-1H-tetrazole and an appropriate amount of ethyl-2-bromo-3-methylbutyrate was substituted for ethyl 2-bromophenylacetate, the title compound was obtained. 1H NMR (CDCl3): δ5.26-5.23 (d, 1H); 4.29-4.19 (q, 2H); 2.94-2.77 (m, 3H); 1.82-1.70 (m, 2H); 1.31-1.20 (m, 21H); 1.08-1.05 (d, 3H); 0.97-0.95 (d, 3H) and 0.90-0.85 (t, 3H) ppm.