University of Cagliari
Annulation of functionalized hexadienones as an efficient regioselective approach to N-aryl-2-trifluoromethyl)-4-pyridinamines
CONGIU, CENZO;ONNIS, VALENTINA
1999-01-01
Abstract
Readily accessible fluorinated N-arylenaminones 3 were reacted with N,N-dimethylformamide dimethylacetal to produce functionalized hexadienones 4. Ring closure of 4 with ammonium acetate afforded selectively N-aryl-2-(trifluoromethyl)-4-pyridinamines 5 in good to excellent yields.
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