“…Analytical samples of the individual ketones were obtained by preparative glpc on the same column. The minor component 12 had mp 29.5-32°; ir (KBr) 1700 (vs), 1190 (m), 1140 (w), 1105 (m), 1090 (s), 1060 (m), 1035 (s), 1005 (w), 960 (w), 945 (m), 860 (w), and 760 cm-1 (w); nmr (CCfi) 1.1-2.3 (m, 6 H), 2.4-3.0 (m, 4 ), 4.15-4.65 (bs, 2 H).…”