| 摘要 |
PCT No. PCT/US95/12726 Sec. 371 Date Jun. 24, 1997 Sec. 102(e) Date Jun. 24, 1997 PCT Filed Oct. 12, 1995 PCT Pub. No. WO96/20151 PCT Pub. Date Jul. 4, 1996A process for preparing 5-chloro-2,3-dihydro-1H-inden-1-one comprising contacting 3-chloro-1-(chlorphenyl)-1-propanone with a catalyst selected from sulfuric acid and solid acid catalysts. |
