The methoxydefluorination of 4,8-dimethyl-6-(p-fluorophenyl)azulene proceeds at 1100 times that of fluorobenzene under the same conditions, and reflects the strongly electron withdrawing nature of the seven-membered ring in the azulene system, in contrast with benzenoid and alkyl substituents in SNAr processes.
4,8-二甲基-6-(对
氟苯基)甘菊环的甲氧基脱
氟反应在相同条件下是
氟苯的1100倍,反映了甘菊环体系中七元环的强吸电子性质。 SNAr 过程中的苯环和烷基取代基。