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香豆素晶体,发生极少量光二聚反应,当它和某种晶格控制物质制成混晶时,发生选择性光二聚反应,如照射香豆素和(R,R)-(一)-反式-4,5-双(羟基二苯基甲基)-2,2-二甲基-1,3-二哑环五烷(TDD)从苯和乙酸乙酯-正己烷中重结晶的两种1:1包接化合物时,分别得到Syn(H-H)和具有90％ee值的anti(H-H)的香豆素二聚体;照射香豆素同安替比林和5-磺尿嘧啶的两种混晶时,分别得到Syn(H-H)和anti (H-H)的二聚体.当这些包接化合物和混晶悬浮在含有少量表面活性剂水中照射时,可加快反应速度和提高二聚体的收率.
Coumarin crystals undergo a very small amount of photodimerisation and undergo selective photodimerisation when they are mixed with a lattice control substance such as coumarin and (R, R) - (i) - Trans-4,5-bis (hydroxydiphenylmethyl) -2,2-dimethyl-1,3-bisphosphatrane (TDD) was recrystallized from benzene and ethyl acetate- Two kinds of 1: 1 inclusion compounds gave Syn (HH) and anti (HH) coumarin dimers with 90% ee values, respectively; the effects of coumarin with antipyrine and 5- In the case of two kinds of mixed crystals, dimers of Syn (HH) and anti (HH) are obtained, respectively. When these inclusion compounds and mixed crystals are suspended in water containing a small amount of surfactant water, the reaction speed and the dimer Yield.