Synthesis and crystal structure of 7,7-dimethyl-2,4-diphenyl-5-oxo-1,4,5,6,7,8-hexahydroquinolin


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Abstract

The 7,7-dimethyl-2,4-diphenyl-5-oxo-1,4,5,6,7,8-hexahydroquinolin was synthesized and the compound was identified by IR, 1H NMR, elemental analysis and X-ray crystallography. It crystallized in the triclinic space group P, with a = 7.129(2) Å, b = 10.514(3) Å, c = 13.040(3) Å, α =76.58(2)°, β = 88.97(2)°, γ = 79.24(2)°, and Dcalc = 1.172 g cm−3 for Z = 2. X-ray analysis revealed that the atoms C(2), C(3), C(4), C(10), C(9), and N form a six-membered ring that adopts a boat conformation, and another six-membered ring (C(10)–C(9)–C(8)–C(7)–C(6)–C(5)) adopts a half-chair conformation. In addition, there is an intermolecular hydrogen bond (N–H0…O) in the product molecule.

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