
TY  - JOUR
A1  - Sevenard, D. V. 
A1  - Khomutov, O. G. 
A1  - Kodess, M. I. 
A1  - Pashkevich, K. I. 
A1  - Loop, I. 
A1  - Lork, E. 
A1  - Röschenthaler, G.-V. 
T1  - Condensation of 2-Polyfluoroacylcycloalkanones with Aldehydes and Dimethylformamide-Dimethylacetal
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 2001
VL  - 54
IS  - 3
SP  - 157
EP  - 163
KW  - 
UR  - https://doi.org/10.1071/CH01027 
N2  - Polyfluorinated 1,3-diketones containing carbocycles react with aldehydes under Lewis-acid catalysis and also with dimethylformamide&#8211;dimetylacetal without catalysis, yielding exclusively (E)-configured condensation products involving the methylene group of the carbocycle. Novel trifluoromethylated chromenes are prepared from 2-trifluoroacetylcycloalkanones and salicylaldehyde. The structures of two new compounds, 2-(E)-benzylidene-6-trifluoroacetylcyclohexanone and 4-trifluoroacetyl-2,3-dihydro-1H-xantene, are confirmed by X-ray structure analysis. 
ER  -

