Synthese und Transformationen chiraler 2,3 ...

V. Experimenteller Teil 159(12.7) [M + -CH 3 -CO/M + -C 3 H 7 ], 251 (22.4) [Fm-H + ], 221 (100.0) [C 15 H 27 N + ], 193 (32.1)[Fr2+C 4 H 8 + ], 166 (34.5) [Fr3+C 4 H 9 + ].Z-6cDC: R f = 0.34 (Dichlormethan/Methanol = 98:2), UV, Iod19 2018871116 17OHC 4313 N12 14625 N 191015O98765(ppm)4321Abb. V-241 H-NMR (400 MHz, CDCl 3 ): δ [ppm] = 8.87 (s, 1 H, CHO), 5.81 (d, 1 H, 3 J = 10.8 Hz,CH-17), 2.87 (s, 3 H, NCH 3 ), 2.80 - 2.68 (m, 1 H, CH-18), 2.40 - 1.43, 1.13 - 0.80 (m, 9 H,Menthyl CH, CH 2 ), 1.12 (d, 3 H, 3 J = 6.5 Hz, CH 3 -19/20), 1.00 (d, 3 H, 3 J = 6.5 Hz,CH 3 -19/20), 0.93 (d, 3 H, 3 J = 6.3 Hz, CH 3 -11), 0.84 (d, 3 H, 3 J = 6.9 Hz, CH 3 -13/14), 0.71(d, 3 H, 3 J = 6.9 Hz, CH 3 -13/14).13 C-NMR (100 MHz, CDCl 3 ): δ [ppm] = 163.7 (C-2), 159.3 (C-16), 125 (C-3,17), 82.8(C-5), 47.6 (C-6), 43.3 (C-10), 34.1 (C-8), 29.5 (C-18), 28.5 (C-9), 25.8 (C-15), 24.2, 23.9,22.9 (C-12,19,20,11,13/14), 21.5 (C-7), 17.6 (C-13/14).