| 摘要 |
NEW MATERIAL:4,4'-Bis(2'-norbornadienecarbonyloxy)benzophenone shown by the formula. USE:Useful as an agent for converting light energy. Absorbing solar energy, causing light isomerization reaction. Since it has a sensitive function part and an energy conversion function part in the same molecule, it will not be badly affected by an enzyme, etc. during the light isomerization, and it has high isomerization rate. Converted 4,4'-bis( 1''-quadricyclenecarbonyloxy )benzophenone will not change even after long-term preservation, and it is converted into the original substance when it is brought into contact with AgBF4, etc. without dissolving it in a solvent. 35Kcal/mol heat is generated during the reaction. The restored compound can be used repeatedly. PREPARATION:4,4'-Dihydroxybenzophenone is condensed with propiolic acid to give 4,4'-dipropioloyloxybenzophenone. This compound is reacted with cyclopentadiene by Diels-Alder reaction, to give a compound shown by the formula. |
