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The title compound, C19H17ClN2O5, is an important inter­mediate for the synthesis of the pesticide Indoxacarb [systematic name: (S)-methyl 7-chloro-2-{[(meth­oxy­carbon­yl)[4-(tri­fluoro­meth­oxy)phen­yl]amino]­carbon­yl}-2H,3H,4aH,5H-indeno­[1,2-e][1,3,4]oxadiazine-4a-carboxyl­ate] The C=N double bond has a Z conformation. An intra­molecular N—H...O hydrogen bond occurs. In the crystal structure, O—H...O hydrogen bonds result in the formation of 12-membered rings lying about inversion centers with R44(12) motifs.

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In the title mol­ecule, C11H10ClFO2, the benzene ring, the F atom and the O atom of the di­hydro­pyran ring are essentially coplanar, with an r.m.s. deviation of 0.007 Å. The di­hydro­pyran ring is in a half-chair conformation. In the crystal, mol­ecules are linked by pairs of weak C—H...π hydrogen bonds, forming inversion dimers.
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