| 摘要 |
NEW MATERIAL:A compound expressed by formula I (R is alkyl, unsaturated alkyl or cycloalkyl). EXAMPLE:Dimethyl tricyclo[5.2.1.0<2>,<6>]dec-3-ene-8,9-dicarboxylate. USE:A precursor for resin fields such as epoxy hardeners or polyester resins, etc. agricultural chemicals such as antimicrobial agents, herbicides, etc. and medicines such as central nervous action agents or circulatory action agents, etc. and expected as a raw material or intermediate for coating materials having particularly heat resistance, electrical characteristics, solubility in solvents, etc. adhesives, plasticizers for polyvinyl chloride. PREPARATION:Dicyclopentadiene of formula II is reacted with CO, an alcohol expressed by the formula ROH and/or an acetal, ketal or alkyl orthoformate which is a derivative thereof in the presence of a Pd catalyst, copper or an iron compound and/or O2 and diesterified directly to afford the aimed compound expressed by formula I . |
