本文报道一类新的由9,10-二氰基蒽(CcA)敏化的α-蒎烯异构化为苧烯和顺式罗勒烯的光化学反应。在苯溶液中形成苧烯的量子产率为0.32,是乙腈溶液中的8倍,提出了经由单重激发态激态复合物形成苧烯和经由三重激发态激态复合物形成顺式罗勒烯的反应历程,并从实验数据的动力学分析中得到了证实。 This paper reports the photochemical reaction of a new class of isomerization of α-pinene with 9,10-dicyanoanthracene (CcA) to limonene and cis-enol. The quantum yield of limonene in the benzene solution was 0.32, which is eight times that in acetonitrile solution. It was proposed to form limonene via the singlet excited state complex and cis-octaolene via the triplet excited state complex The reaction process, and from the experimental data of kinetic analysis was confirmed.