Two position isomers of di-t-butyl-diphenyldidehydro[14]annulene have been prepared according to a stepwise sequence of reactions and their physical properties were compared with those of another position isomer, 3,10-di-t-butyl-7,14-diphenyl-1,8-didehydro[14]annulene. The synthesis of 3, 10-di-t-butyl-6,13-dimethoxy-7,14-diphenyl-1,8-didehydro[14]annulene has been performed. The introduction of methoxy groups causes a hypsochromic shift with hypochromism and a bathochromic shift with strong hyperchromism of medium and longest wavelength bands of the electronic spectrum, respectively.
根据逐步反应顺序制备了二叔丁基二苯基二氢化[14]轮烯的双位异构体,并将其物理性质与另一种位置异构体3,10-二叔丁基-7、 14
-二苯基-1,8-二脱氢[14]轮烯。 3, 10-二叔丁基-6,13-二甲氧基-7,14
-二苯基-1,8-二脱氢[14]轮烯的合成已完成。甲氧基的引入分别引起电子光谱的中等和最长波长带的低色移和强增色的红移。