Title fulvenes were synthesized through the reaction of the large-membered annulenones with malononitrile, and their 1H NMR spectra were examined proving that the dicyanotrideca- and -heptadecafulvenes are paratropic while the dicyanopentadecafulvene is diatropic.
通过大元环烯酮与
丙二腈的反应合成了标题富烯,并对其 1H NMR 光谱进行了研究,结果证明双
十三烷富烯和
十七烷富烯是对位的,而双
十五烷富烯是二对位的。