Crystal structure of 2-chloro-1-(6-fluoro-3,4-dihydro-2H-chromen-2-yl)ethanone

Abstract

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.

Keywords

• crystal structure
• chromene
• dihydropyran ring
• hydrogen bonding
• dimer formation
• nebivolol intermediate