77′88′-Tetra­meth­oxy-44′-dimethyl-33′-bicoumarin

摘要

In the crystal structure, the title compound, C24H22O8, lies on a twofold rotation axis and the asymmetric unit comprises one half-mol­ecule. The dihedral angle formed by the coumarin unit with the symmetry-related part is 74.78 (14)°. One of the meth­oxy groups attached to the coumarin unit is considerably twisted, making an angle of 87.17 (17)° with respect to the coumarin unit; the other is twisted by 0.66 (19)°. No classical hydrogen bonds are found in the sturcture; only a weak C—H⋯π inter­action and short intra­molecular O⋯O contacts [2.683 (2)–2.701 (2) Å] are observed.