Solid‐State Photodimerization of 1,2‐Bis(5′‐pyrimidyl)ethene
Solid‐State Photodimerization of 1,2‐Bis(5′‐pyrimidyl)ethene
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1,2-双(5′-嘧啶基)乙烯的固态光二聚
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
N. Rath
中科院分区：
文献类型：
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作者：
E. Bosch;J. M. Matheny;N. Rath
摘要报道了1，2-二(5‘-嘧啶)乙烯在固体中的光二聚反应。1，2-双(5‘-嘧啶)乙烯和C-甲基杯[4]间苯二酚自组装形成的结晶固体光解和二氯甲烷重结晶形成的固体光解得到唯一产物cis‐anti‐cis‐1，2，3，4‐tetrakis(5′‐pyrimidyl)cyclobutane。对每一种固体的单晶X射线分析证实，这些烯烃是π堆叠的，共线，相隔不到4.2o。
Abstract The photodimerization of 1,2‐bis(5′‐pyrimidyl)ethene in the solid state is reported. Photolysis of the crystalline solid formed on self‐assembly of 1,2‐bis(5′‐pyrimidyl)ethene and C‐methylcalix[4]resorcinarene and photolysis of the solid recystallized from dichloromethane yielded cis‐anti‐cis‐1,2,3,4‐tetrakis(5′‐pyrimidyl)cyclobutane as the only product. Single‐crystal X‐ray analysis of each of these solids confirms that the alkenes are π‐stacked, colinear, and separated by less than 4.2 Å.