Knoevenagel Condensation in the Heterogeneous Phase using KF-Montmorillonite as a New Catalyst †

Jones G. , Organic Reactions, Wiley, New York, 1976, Vol. 15, P204.

Jexier-Boullet F. , and Foucaud A. , Tetrahedron Lett., 1982, 23, 4297.

Chalais S. , Laszlo P. , and Mathy A. , Tetrahedron Lett., 1985, 26, 4453.

Cabello J.A. , Campelo J.M. , Garcia A. , Luna D. , and Marina J.M. , J. Org. Chem., 1984, 49 (46), 5195.

Gao Y. , Shi D.Q. , Zhou L.H. , and Dai G.Y , Huaxue(Ch) Youji , 1996, 16(6), 548; Chem. Abstr., 126(1997), 171372x

Villemin D. , and Martin B. , J. Chem Res., (S), 1994, 146

Prajapati D. , and Sanduh J.S. , J. Chem. Soc., Perkin Trans. I, 1993, 739

X-ray crystallography for 3c: Empirical formula C1₄H₁₅NO₄, F_W =261.27, T=293(2)K, monoclinic, space group P2(1)/n, a=13.101(3)Å, b=8.032(2)Å, c=13.854(2) Å, α=90°, β=114.21(1)°, γ=90°, V=1329.6(5)ų, Z=4, Dc=1.305Mg/m³, λ(MoKα)= 0.71073Å, μ= 0.096 mm^-1, F(000)=552. 1.80° < θ < 25.00°, R=0.0389, wR=0.0816. S=0.846, Largest diff. Peak, and hole: 0.124, and -0.136 e. Å^-3.

Shi D.Q. , Liu Y.M. , Gao Y. , Zhou L.H. , and Dai G.Y. , J. Xuzhou Normal University (Ch), 1997, 15(3), 30.