| abstract |
The invention discloses the preparation method of a kind of perhydro fluorenes or perhydro fluorenes alkyl substituents, this method comprises the following steps：(1) make phenolic compound or arene compounds or arone compounds or fragrant ether compound that alkylated reaction occur in the presence of the first catalyst with benzyl compounds, generate substituted or unsubstituted diphenyl-methane；Wherein described first catalyst is acidic catalyst；(2) make the substituted or unsubstituted diphenyl-methane be hydrogenated with the presence of the second catalyst with hydrogen or hydrogenation deoxidation reaction, obtain perhydro fluorenes or perhydro fluorenes alkyl substituents；Wherein described second catalyst is the mechanical impurity of metallic catalyst and acid catalyst or the metallic catalyst being supported on acid catalyst. |