Uber eine Reaktion der N-Oxyde der Chinolin-Reihe mit Bleitetraacetat (II).

Development of 1‐Hydroxy‐2(1H)‐quinolone‐Based Photoacid Generators and Photoresponsive Polymer Surfaces

“…1‐(Benzoyloxy)‐2‐quinolone ( 5 b ):47 The dark yellow crude product was purified by column chromatography (20 % ethyl acetate/hexane) to give 5 b (90 %) as a pale yellow solid; R f (30 % ethyl acetate/hexane) 0.50; m.p. 120–122 °C; FTIR (KBr) ${\tilde \nu _{{\rm{max}}} }$ =1770, 1666 cm −1 ; 1 H NMR (CDCl 3 , 200 MHz): δ =6.81 (d, 1 H, J =9.6 Hz), 7.21–7.39 (m, 2 H), 7.43–7.58 (m, 4 H), 7.59–7.64 (m, 1 H), 7.67–7.78 (m, 1 H), 8.28 (d, 2 H, J =7.0 Hz); 13 C NMR (CDCl 3 , 100 MHz): δ =111.1, 119.8, 121.9, 123.2, 125.9, 128.3, 128.5, 128.9, 130.0, 130.5, 131.2, 134.8, 138.5, 139.3, 156.8, 162.6; MS m / z : 305 (19 %), 304 (80 %, [ M +Na + ]), 282 (100 %, [ M +H + ]), 214 (35 %); HRMS (ES + ) calcd for C 16 H 11 NO 3 [ M +H + ]: 265.0738, found: 265.0731.…”