Spiro[1,3-dioxolane-2,3′-indolin]-2′-one
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چکیده
The title compound, C(10)H(9)NO(3), was synthesized by the condensation reaction of isatin (systematic name 1H-indole-2,3-dione) with glycol in presence of p-toluene-sulfonic acid. The indol-2-one ring system is essentially planar [N-C-C-C torsion angle = 3.1 (2)°], and the 1,3-dioxolane ring is slightly distorted. The crystal structure exhibits inter-molecular N-H⋯O hydrogen bonds.
منابع مشابه
5′-Chlorospiro[1,3-dioxolane-2,3′-indolin]-2′-one: a potential anticonvulsant
The title compound, C(10)H(8)ClNO(3), is a significant anti-convulsant agent. The indolinone system is essentially planar, the dihedral angle between the rings being 2.24 (8)°. The dioxolane ring adopts an envelope conformation; the dihedral angle between the plane through its four coplanar atoms and the indolinone system is 89.8 (1)°. The crystal structure is stabilized by a three-dimensional ...
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