Citation: Fu Feng. Solvent-free Michael addition reaction of fluorene with chalcon[J]. Chinese Chemical Letters, ;2011, 22(1): 29-32. doi: 10.1016/j.cclet.2010.09.006 shu

Solvent-free Michael addition reaction of fluorene with chalcon

Fu Feng

School of Chemistry and Environmental Engineering, Hubei Institute for Nationalities, Enshi 445000, China

Received Date: 4 May 2010

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, ¹H 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) nm³, Z=4, Dc=1.220 g/cm³, μ=0.286 mm^-1, F(000)=920, R=0.0656 and wR=0.1554 for 5664 observed reflection with I>2σ(I).
- Fluorene,
- Chalcone,
- Michael addition,
- Solvent-free
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