反应详情

Yield 0.17 g 94.4%)--melting point>360° C.--RF (silica gel/i-propanol)=0.82.--IR (KBr): 3420 cm-1 (m), 3067-2550 (m, OH), 1574 (m), 1508 (m), 1503 (m), 1466 (m), 1425 (w), 1400 (w), 1376 (m), 1332 (s), 1281 (w), 1249 (w), 1217 (s), 1161 (w), 1141 (s), 755 (s).--UV/VIS (chloroform): λmax (ε)=399 nm (9202), 328 nm (7975).--1H-NMR ((D6)DMSO/TMS): δ:6.96-7.58 (m, 6H, 5-H, 5'-H, 6-H, 6'-H, 7-H, 7'-H), 7.98 (d, J8,7 =J8',7' 8.0 Hz, 2H, 8-H, 8'-H), 8.87 (s, 2H, 4-H, 4'-H).--MS (70 eV): m/z (%)=298 (18) M+ +1, 288 (100) M+, 287 (16), 271 (7) M+ -OH, 260 (7), 259 (17), 232 (5), 231 (9), 204 (7), 176 (s), 88 (4).