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Updated: Jun 1, 2026

Microwave-assisted Intramolecular Dehydrogenative Diels-Alder Reactions for the Synthesis of Functionalized Naphthalenes/Solvatochromic Dyes
Published on: April 1, 2013
3-Hydr-oxy-N'-[(Z)-(5-methyl-2-fur-yl)methyl-idene]naphthalene-2-carbo-hydrazide
Abstract:
The asymmetric unit of title compound, C(17)H(14)N(2)O(3), contains three independent mol-ecules. In one of these mol-ecules, the 5-methyl-2-furyl group is disordered over two sets of sites with an occupancy ratio of 0.747 (3):0.253 (3). In the two ordered mol-ecules, the furan and naphthalene rings are oriented at dihedral angles of 11.05 (12) and 32.2 (5)°. In the disordered mol-ecule, the furan rings with major and minor occupancies are oriented at dihedral angles of 41.4 (2) and 26.6 (13)°, respectively, with the corresponding naphthalene ring. An intra-molecular O-H⋯O hydrogen bond occurs within each mol-ecule. In the crystal, mol-ecules are linked by N-H⋯O, N-H⋯(N,O) and C-H⋯O inter-actions.
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