“…Our previous experience included decomposition of lactone tosylhydrazone salts (9) Characterization data are given below: 1, ir 1775 cm-1 (vs); nmr (220 MHz) 5 1.14 (s, 6 ), 1.36-1.81 (m, 8 H), 2.66 (s, 2 H); 2, 1775 cm"1 (vs); nmr (220 MHz) 0.927 (d, / = 5 Hz) and 0.955 (d, / = 5 Hz) (6 ), 1.36-2.08 (m, 10 ), 2.60 8 Hz, 1 H); 9a, ir 1780 cm"1 (vs); nmr (220 MHz) 1.09 (s, 6 ), 1.55-2.04 (m, 8 H), 2.26 (s, 2 H); 10a, ir 1780 cm-1 (vs); nmr (220 MHz) 0.945 (d, / = 7 Hz) and 0.950 (d, J = 7 Hz) (6 ), 1.55-2.03 (m, 9 ), 2.03-2.27 (m, 2 H), 2.36-2.59 (m, 1 H); 9c, ir 3200, 1680, 1160 cur1; nmr (220 MHz) 0.93 (s, 6 H), I. 5-1.9 (m, 8 ), 2.40 (s) and 2.41 (s) (5 H), 7.28 (d, / = 8 Hz, 2 H), 7.38 (s, 1 H), 7.82 (d, / = 8 Hz, 2 H); mp 147.5-150.5°; 10c, ir 3200, 1685, 1160 cm"1; nmr (220 MHz) 0.80 (d, / = 7 Hz, 3 ), 0.92 (d, / = 7 Hz, 3 ), 1.5-2.1 (m, 10 H), 2.32 (d of d, = 17, = 5 Hz, 1 H), 2.42 (s, 3 H), 2.72 (d of d, = 17, = 4 Hz, 1 H), 7.28 (m, 3 ), 7.80 (d, / = 8 Hz, 2 H); mp 137.5-140.5°. having five-, six-, and seven-membered rings and indicated that the yield of cyclopentanone and cyclohexanone from appropriate precursors was significantly higher than yields of cyclobutanones.…”