dicyanomethylation with excess of NaCH(CN)2 followed by repetition of the successive bromination–dehydrobromination procedure gives the title compound (20%), the structure of which has been confirmed by X-ray analysis of its monoanionic semiconductor Et4N+ salt.
用八氢
蒽的
溴化Ñ然后用过量
胆碱(CN)的
溴代琥珀
酰亚胺dicyanomethylation(
NBS)2,接着连续
溴化-脱
溴化氢步骤的重复,得到标题化合物(20%),其结构已被证实X -射线分析其单阴离子半导体Et 4 N +盐。