“…Compounds 2a , 1-phenylbut-2-en-1-one ( 2c ), 3-(2-chlorophenyl)-1-(4-fluorophenyl)prop-2-en-1-one ( 2e ), and 3-(4-methoxyphenyl)-1-(4-fluorophenyl)prop-2-en-1-one ( 2j ) were obtained from commercial suppliers. All other α,β-unsaturated aldehyde/ketones ( 2b , 2d , 2f – 2i , and 2k ) ,,− and α-aminonitriles − were prepared according to literature procedures.…”