Abstract
Abstract A series of novel Michael addition products of fluorene to chalcone were obtained in the presence of sodium hydroxide under solvent-free condition. The advantages of this procedure were mild reaction conditions, simple protocol, and high yields. The structures of the products were characterized by IR, 1 H NMR, MS and X-ray diffraction. The crystal of the new compound 3 h is Triclinic, space group P -1 with a = 0.97352(6) nm, b = 1.08918(7) nm, c = 2.58418(16) nm, α = 80.1400(10)°, β = 79.5490(10)°, γ = 64.2440(10)°, V = 2.4137(3) nm 3 , Z = 4, Dc =1.220 g/cm 3 , μ = 0.286 mm −1 , F (000) = 920, R = 0.0656 and wR = 0.1554 for 5664 observed reflection with I > 2σ( I ).
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