The photosubstitutions of azulene, 1-nitroazulene and 3-substituted 1-nitroazulenes with nucleophiles have been investigated. In these azulenes the atom at position 1 proved to be the most reactive in accord with the calculated excited state charge densities. The photomethoxylation of 1-nitroazulene probably proceeds through a triplet state. The quantum efficiency of this reaction proved to be wavelength-dependent
已经研究了氮杂
环丁烯,1-硝基氮杂
环戊烯和3-取代的1-硝基氮杂
环丁烷与亲核试剂的光合。在这些天青石中,根据计算出的激发态电荷密度,第1位的原子被证明是最活泼的。1-硝基氮杂的光甲氧基化可能通过三重态进行。事实证明,该反应的量子效率与波长有关,这表明可能发生与更高的激发单重态发生系统间交叉。