Patent ID: 7132564

Claim:
Process for preparing cyclic ketones of the general formula (I), where X is an electron-pulling group, R 1 and R 2 are each, independently of one another, H, C 1 –C 20 -(cyclo)alkyl, C 6 –C 24 -aryl, C 1 –C 20 -(cyclo)alkyl ester or C 1 –C 20 -(cyclo)alkylamide, C 6 –C 24 -aryl ester or C 6 –C 24 -arylamide, a mixed aliphatic/aromatic radical having from 1 to 24 carbon atoms, which can also be part of a 4- to 6-membered ring, wherein a metal base is reacted with a compound of the general formula (II) where, independently of one another, the radicals R 1 and R 2 are as defined above, R 3 is an alkyl or aryl radical and X is an electron-pulling group, n is an integer from 0 to 3 in a solid-state reactor or high-viscosity reactor without additional solvents being used, wherein complete conversion of starting materials is achieved.