| 摘要 |
The present invention relates to a process for preparing 1-indanones of formula (I) and isomers thereof, wherein R<1>, R<2>, R<3>, R<4>, R<5>, and R<6> independently represent H or a C1-C20 hydrocarbon group or R<1> and R<2> or R<2> and R<3> or R<3> and R<4> and/or R<5> and R<6> together with the carbon atoms to which they are attached form a saturated or unsaturated 5- or 6-membered ring, said hydrocarbon group and/or said ring optionally containing one or more hereto atoms, said ring optionally being substituted with a C1-C4 hydrocarbon group, said process comprising reacting a compound of formula (II), wherein R<1>, R<2>, R<3>, R<4>, R<5>, and R<6> have the same meaning as defined above, with a chlorinating agent, followed by reaction with a Friedel-Crafts catalyst. The invention further relates to the preparation of the corresponding indenes. |
