X-Ray Study of 7a-(2-Chlorophenyl)-7a,8a,9,10,11,12ahexadronaptho[ 1',2':4,5]furo[3,2-d]pyrrolo[2,1-b]oxazole and 2-(4-fluorophenyl)-2-hydroxynaptho[2,1-b]furan-1(2H)-one

Abstract

Two organic compounds, namely, 7a-(2-chlorophenyl)-7a,8a,9,10,11,12a-hexadronaptho-[1',2':4,5]furo[3,2-d]pyrrolo[2,1-b]oxazole (I) and 2-(4-fluorophenyl)-2-hydroxynaptho[2,1-b]furan- 1(2H)-one (II), were synthesised via microwave reaction using commercially available glyoxal monohydrate, β-Naphthol, pyrrolidine, and Cu(OAc)₂ · H₂O, and their crystal structures were determined by X-ray diffraction technique. The crystals of compound I are orthorhombic, sp. gr. P2₁2₁2₁, a = 6.8750(5) Å, b = 8.2248(9) Å, c = 31.720(3) Å, and Z = 4, while the crystals of compound II are monoclinic, sp. gr. P2₁/c, a = 7.4038(9) Å, b = 18.592(2) Å, c = 10.4589(12) Å, β = 107.492(13)°, and Z = 4. The inter molecular O–H···O, C–H···O, and C–H···F hydrogen interactions play significant role in stabilizing the crystal structure in the compound II. In addition, aromatic π–π interactions are also observed in the structure of the compound II.