Efficient One-Pot Synthesis of 4-Aryl-3-cyano-2,5-dihydro-1H-indeno[1,2-b]pyridin-2-one and 4-Aryl-3-cyano-1,2,5,6-tetrahydrobenzo[h]quinolin-2-one Derivatives Under Solvent-Free Conditions

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• X-ray crystallography for 4h: empirical formula C20H13FN2O, Fw = 316.32, T = 298(2) K, triclinic, space group p–1, a = 8.116 (10) Å, b = 9.278 (12) Å, c = 11.263 (14) Å, α = 98.674 (19)°, β = 105.095 (17)°, γ = 104.846 (18)°, V = 769.7 (16) Å3, Z = 2, Dcalcd. = 1.365 Mg/m3, λ (MoK) = 0.71073 Å, µ = 0.094 mm−1, F(000) = 328. 2.34° < θ < 25.001°, R = 0.0482, wR = 0.1149, s = 0.997, largest diff. peak and hole: 0.149 and −0.168 e Å−3.
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