title: (5S,6R)-6-Bromo-6-methyl-5-phenyl-3,4,5,6-tetra-hydro-2H-cyclo-penta-[b]pyran-7-one.
abstract: The title compound, C(15)H(15)BrO(2), was synthesized by a Brønsted acid-catalysed domino electrocyclization-halogenation reaction. The five-membered ring is essentially planar (r.m.s. deviation 0.006 Å) and forms a dihedral angle of 72.7 (3)° with the attached phenyl ring. The six-membered heterocycle adopts a half-chair conformation. The crystal packing is stabilized by a C-H⋯O contact.
authors: Winai
authors: W
authors: Ieawsuwan
authors: Michael
authors: M
authors: Bolte