Novel photo-fragmentation of 3,3,6,6-tetra(p-methoxyphenyl)-1,2-dioxane through a CO bond cleaved 1,6-diradical intermediate
作者:Masaki Kamata、Takehito Tanaka、Mitsuaki Kato
DOI:10.1016/0040-4039(96)01855-2
日期:1996.11
were investigated. The photolysis of 3,3,6,6-tetra(p-methoxyphenyl)-1,2-dioxane afforded1,4,4-tri(p-methoxyphenyl)-3-buten-1-one and p-methoxyphenol through a novel CO bond cleaved 1,6-diradical intermediate, while the thermolysis mainly afforded the expected decomposition product 4,4′-dimethoxybenzophenone through an OO bond cleaved 1,6-dioxy diradical intermediate.
研究了3,3,6,6-四芳基-1,2-二恶烷的光解和热解。3,3,6,6-四(对甲氧基苯基)-1,2-二恶烷的光解通过新型反应得到1,4,4-三(对甲氧基苯基)-3-丁烯-1-酮和对甲氧基苯酚C = O键裂解了1,6-二自由基中间体,而热解主要通过O = O键裂解了1,6-二氧基二自由基中间体而提供了预期的分解产物4,4′-二甲氧基二苯甲酮。