5-Methoxy-2-benzofuran-1(3H)-one

5-Nitro-1-benzofuran-2(3H)-one

In the crystal structure of the title compound, C(8)H(5)NO(4), essentially planar mol-ecules [largest deviation from the least-squares plane = 0.030 (2) Å] form stacks along the a-axis direction. Intercentroid separations between overlapping benzene rings within the stack are 3.6594 (12) Å and 3.8131 (12) Å. Mol-ecules from neighboring stacks are linked by weak C-H⋯O hydrogen bonds into inversi...

5-Meth­oxy-2-benzofuran-1(3H)-one

In the title compound, C9H8O3, the mol-ecular skeleton is almost planar, with an r.m.s. deviation of 0.010 (2) Å. In the crystal, weak C-H⋯O hydrogen bonds connect the mol-ecules into a two-dimensional network parallel to the ac plane.

3,3-Dimethyl-2-benzofuran-1(3H)-one

In the title compound, C(10)H(10)O(2), all the non-H atoms except the methyl C atoms lie on a crystallographic mirror plane. In the crystal, C-H⋯O hydrogen bonds link the mol-ecules into zigzag chains running parallel to [100]. Weak π-π stacking inter-actions between the benzene rings [centroid-centroid distance = 3.9817 (5) Å] link the chains in the [010] direction.

genotoxic effects of 2-methoxy and 2-methyl benzofuran phenylmethyl imidazole on mcf-7 cell line

Ethyl 5-bromo-1-benzofuran-2-carboxyl­ate

In the title compound, C(11)H(9)BrO(3), the benzofuran fused-ring system is almost planar, with a maximum atomic deviation of 0.024 (5) Å; the carboxyl -CO(2) fragment is aligned at 4.8 (7)° with respect to the fused-ring plane. Weak inter-molecular C-H⋯O hydrogen bonding is present in the crystal structure. π-π stacking is also observed between parallel mol-ecules, the centroid-centroid distan...