Add time:09/05/2019         Source:sciencedirect.com

The strategy of searching for highly electrophilic agents in a class of chemically inert compounds – methylenequinone imines – was developed and successfully performed. The first representative of such electrophiles – N-acyl-α-methoxycarbonyl-α-trifluoromethyl-p-methylenequinone imine 6 – was synthesized. Its reactions with N-, O- and C-nucleophiles were investigated that gave various derivatives of α-trifluoromethyl-α-amino(oxy) acids as well as ß,ß,ß-trifluoropropionic acids. 3-Chloro-3-trifluoro-1,3-dihydroindol-2-ones were first obtained and their reactions with nucleophiles were studied with 1-aza-3-trifluoroindene-2-ones being formed as intermediates.

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