Crystal structure of 3-bromoacetyl-6-chloro-2H-1-benzopyran-2-one

Abstract

In the title compound, C11H6BrClO3, the benzo­pyran ring system is essentially planar, with a maximum deviation of 0.036 (2) Å for the O atom. The Cl and Br atoms are displaced by −0.0526 (8) and 0.6698 (3) Å, respectively, from the mean plane of this ring system. In the crystal, two pairs of weak C—H⋯O hydrogen bonds to the same acceptor O atom link mol­ecules into inversion dimers.

3-(Bromoacetyl)coumarins: unraveling their synthesis, chemistry, and applications

“…3 ). Whereas, Chennuru et al 34 reported a single-crystal X-ray of 6-chloro-3-(bromoacetyl)coumarin ( Fig. 4 ).…”