1-Methyl-3-(2-methyl­phen­yl)-3,3a,4,9b-tetra­hydro-1H-chromeno[4,3-c][1,2]oxazole-3a-carbonitrile

In the title compound, C19H18N2O2, the five-membered isoxazole ring adopts an envelope conformation and the deviation of the N atom from the mean plane of the isoxazole ring is −0.3256 (11) Å. The pyran ring adopts a half-chair conformation. The isoxazole ring forms dihedral angles of 44.07 (7) and 84.23 (7)° with the pyran and methyl­benzene rings, respectively. The mol­ecular structure is stabilized by weak C—H⋯π inter­actions

Methyl (Z)-2-[(4-bromo-2-formyl­phen­oxy)meth­yl]-3-(4-methyl­phen­yl)acrylate

In the title compound, C19H17BrO4, the dihedral angle between the two benzene rings is 82.9 (2)°. The mol­ecular structure is stabilized by an intra­molecular C—H⋯O hydrogen bond, which generates an S(7) ring motif. The crystal packing is stabilized by C—H⋯O hydrogen bonds, which generate two centrosymmetic ring systems with R22(18) and R22(14) graph-set motifs. The crystal packing is further stabilized by inter­molecular π–π inter­actions [centroid–centroid distance = 3.984 (2) Å]

(E)-2-(2-Formyl­phen­oxy­meth­yl)-3-phenyl­prop-2-ene­nitrile

In the title compound, C17H13NO2, the dihedral angle between the benzene and the phenyl ring is 65.92 (7)°. The carbonitrile side chain is almost linear, the C—C—N angle being 175.55 (14)°. The crystal structure is stabilized by inter­molecular C—H⋯O inter­actions

(E)-6-Methyl-3-(2-methyl­benzyl­idene)­chroman-2-one

In the title compound, C18H16O2, the heterocyclic ring of the chroman-2-one system adopts a slightly distorted screw-boat conformation. The dihedral angle between the least-squares planes of the coumarin ring system and the benzene ring is 67.5 (1)°. The crystal packing features C—H⋯O hydrogen bonds, which link the mol­ecules into centrosymmetric R22(8) dimers, and C—H⋯π inter­actions

(E)-2-[(2-Formyl­phen­oxy)meth­yl]-3-(4-methyl­phen­yl)prop-2-ene­nitrile

In the title compound, C18H15NO2, the dihedral angle between the two benzene rings is 74.8 (1)°. The carbonitrile chain is almost linear, the C—C—N angle being 176.2 (2)°. In the crystal, π–π inter­actions [centroid–centroid distance = 3.842 (1) Å] are observed

1-Methyl-3-(2-methyl­phen­yl)-3a-nitro-1,2,3,3a,4,9b-hexa­hydro­chromeno[4,3-b]pyrrole

The asymmetric unit of the title compound, C19H20N2O3, contains two independent mol­ecules in both of which the pyrrolidine ring adopts an envelope conformation, but with a C atom as the flap in one mol­ecule and the N atom in the other. The pyran ring adopts a half-chair conformation in both mol­ecules. In the crystal, mol­ecules are linked via C—H⋯O hydrogen bonds and C—H⋯π inter­actions

Methyl (2Z)-2-{[N-(2-formyl­phen­yl)-4-methyl­benzene­sulfonamido]­meth­yl}-3-(naphthalen-1-yl)prop-2-enoate

In the title compound, C29H25NO5S, the sulfonyl-bound benzene ring forms dihedral angles of 42.1 (1) and 48.5 (1)°, respectively, with the formyl-substituted benzene ring and the naphthalene residue. In the crystal, pairs of C—H⋯O inter­actions lead to the formation of R 2 2(10) inversion dimers, which are linked by further C—H⋯O inter­actions into supra­molecular tapes running along [100]. The crystal packing is further stabilized by C—H⋯π inter­actions

(2S,5S,6R)-5-(4-Methyl­phen­yl)-3-phenyl-4,8-dioxa-3-aza­tricyclo­[7.4.0.02,6]trideca-1(13),9,11-triene-6-carbonitrile

In the title compound, C24H20N2O2, the six-membered pyran ring adopts a half-chair conformation with one C atom deviating from the mean plane of the remaining ring atoms by 0.654 (6) Å. The five-membered isoxazole ring adopts an N-envelope conformation with the N atom displaced by 0.742 (5) Å from the mean plane formed by the remaining ring atoms. The carbonitrile side chain is almost linear, with a C—C—N angle of 178.6 (5)°. The crystal packing is stabilized by inter­molecular C—H⋯N inter­actions, through bifurcated acceptor hydrogen bonds formed between the carbonitrile N atom and two alternate C atoms in the unsubstituted benzene ring. The mol­ecular structure and crystal packing are further stabilized by intra­molecular and inter­molecular C—H⋯π inter­actions

(E)-Methyl 2-[(2-formyl-6-meth­oxy­phen­oxy)meth­yl]-3-phenyl­acrylate

The title compound, C19H18O5, crystallizes with two independent mol­ecules (A and B) in an asymmetric unit in both of which the two aromatic rings are in a bis­ectional orientation as evidenced by the dihedral angle between them [41.7 (1)° in mol­ecule A and 35.6 (1)° in mol­ecule B]. Both mol­ecules adopt an E configuration with respect to the C=C bond. An intra­molecular C—H⋯O hydrogen-bond occurs in mol­ecule A. The crystal packing features inter­molecular C—H⋯O inter­actions