Jie Sun, Z. Cai
Aug 26, 2009
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Journal
Acta Crystallographica Section E: Structure Reports Online
Abstract
The title compound, C8H7ClN2O2, is an intermediate in the synthesis of 5-chloroisatin, which can be further transformed to 5-chloro-2-indolinone via a Wolff–Kishne reduction. The C2N acetamide plane forms a dihedral angle of 6.3 (3)° with the benzene ring. An intramolecular C—H⋯O interaction results in the formation of a six-membered ring. In the crystal, intermolecular N—H⋯O, N—H⋯N and O—H⋯O hydrogen bonds link the molecules into multimers, forming sheets.