反应详情

The title compound was prepared following the method for the preparation of methyl 6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)spiro[3.3]hept-5-ene-2-carboxylate, Step 2 described above in page 65-67, using ethyl 2-methyl-4-(((trifluoromethyl)sulfonyl)oxy)cyclohexa-2,4-dienecarboxylate as the reactant. (57.8% yield). 1H NMR (400 MHz, CHLOROFORM-d) δ 6.64 (t, J=1.6 Hz, 1H), 4.28-4.15 (m, 2H), 2.46-2.32 (m, 2H), 2.29-2.19 (m, 2H), 2.18 (t, J=1.8 Hz, 3H), 1.38-1.25 (m, 15H).