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9 氯甲基蒽 ( 1 )与 3 ,5 二甲氧基苄醇 ( 2 )在相转移催化剂存在下反应生成 9 ( 3 ,5 二甲氧基苄基氧甲基 )蒽 ( 3 ) .( 3 )的苯溶液在紫外光照射下发生蒽环与苯环间的分子内 [4π + 4π]光致环加成反应 ,定量地生成多环化合物 ( 4 ) .( 4 )在热的作用下发生逆反应 ,定量地转化成原料 ( 3 ) .这种光致可逆反应可应用于制备光开关材料 .
9 Chlormethylanthracene (1) reacts with 3,5-dimethoxybenzyl alcohol (2) in the presence of a phase transfer catalyst to form 9 (3, 5 dimethoxybenzyloxymethyl) anthracene (3) 3) benzene solution under ultraviolet irradiation anthracene ring and benzene ring intramolecular [4π + 4π] photocyclic addition reaction generated quantitative polycyclic compound (4) (4) under the action of heat Reverse reaction, quantitative conversion into raw materials (3) This photorefractive reaction can be applied to the preparation of optical switch material.