3-Benzyl-9-phenyl-2-tosyl-2,3,3a,4,9,9a-hexa­hydro-1H-pyrrolo[3,4-b]quinoline

In the title compound, C31H30N2O2S, the pyrrolidine ring adopts a twist conformation while the tetra­hydro­pyridine ring is in a half-chair conformation. The two rings are trans-fused. The pyridine-bound phenyl ring forms dihedral angles of 17.7 (1) and 48.1 (1)°, respectively, with the tosyl and benzyl phenyl rings. The mol­ecular structure is stabilized by an N—H⋯π inter­action involving the benzyl phenyl ring. In the crystal structure, mol­ecules translated by one unit along the a axis are linked into chains by C—H⋯π inter­actions involving the benzene ring of the tosyl group

3-Benzyl-7-meth­oxy-9-phenyl-2-tosyl-2,3,3a,4,9,9a-hexa­hydro-1H-pyrrolo[3,4-b]quinoline

In the title compound, C32H32N2O3S, the pyrrolidine ring adopts an envelope conformation with the methine C atom nearest to the phenyl ring as the flap atom. The tetra­hydro­pyridine ring has a half-chair conformation. The two rings are trans-fused. The phenyl ring bound to the tetra­hydro­pyridine is oriented almost perpendicular [dihedral angle = 86.35 (10)°] to the fused benzene ring. The dihedral angle between the benzyl­phenyl ring and the sulfonyl-bound phenyl ring is 69.43 (10)°. A very weak N—H⋯π inter­action is observed in the mol­ecular structure. In the crystal, mol­ecules translated one unit along the b axis are linked into C(10) chains by C—H⋯O hydrogen bonds; adjacent chains are linked via C—H⋯π inter­actions, forming a two-dimensional network parallel to the bc plane

4,4-Dimethyl-2-tosyl-1,2,3,3a,4,11b-hexa­hydro-11H-pyrrolo[3,4-c]pyrano[5,6-c]chromen-11-one 0.125-hydrate

In the title compound, C23H23NO5S·0.125H2O, the pyrrolidine ring has a twist conformation and the dihydro­pyran ring adopts a half-chair conformation; the two rings are cis-fused. The mol­ecule adopts a folded conformation. The sulfonyl-bound phenyl ring and the pyran ring of the coumarin ring system are stacked over one another, with a centroid–centroid distance of 3.7470 (7) Å; the dihedral angle between the two rings is 18.93 (2)°. An intra­molecular C—H⋯O hydrogen bond is observed. The solvent water mol­ecule, lying on a twofold rotation axis, is only partially occupied with an occupancy of 0.125 (relative occupancy with respect to the main molecule) and is involved in O—H⋯O and C—H⋯O hydrogen bonding

3-Benzyl-7-bromo-9-phenyl-2-tosyl-2,3,3a,4,9,9a-hexa­hydro-1H-pyrrolo[3,4-b]quinoline

In the title compound, C31H29BrN2O2S, the pyrrolidine ring is in a twist conformation and the tetra­hydro­pyridine ring adopts an envelope conformation with the methine C atom adjacent to the NH group as the flap atom; the two rings are trans-fused. The bromo­benzene ring and the nearest phenyl ring form a dihedral angle of 82.72 (10)°. The benzyl phenyl and the tosyl phenyl rings are oriented at a dihedral angle of 75.57 (11)°. An intra­molecular N—H⋯π inter­action is observed. In the crystal, mol­ecules are linked into chains running along [101] by C—H⋯O hydrogen bonds and the chains are cross-linked via weak C—H⋯π inter­actions

1-Ethyl-2-tosyl-4,4,6-trimethyl-2,3,3a,4-tetra­hydro-1H-pyrrolo[3,4-c]pyrano[6,5-b]quinoline-11(6H)-one monohydrate

In the title compound, C26H30N2O4S·H2O, the pyrrolidine and dihydro­pyran rings adopt envelope conformations and they are cis-fused. The sulfonyl group has a distorted tetra­hedral geometry. In the crystal structure, the mol­ecules are linked into a ribbon-like structure along the a axis by O/C—H⋯O hydrogen bonds involving water mol­ecules and C—H⋯π inter­actions involving the sulfonyl-bound phenyl ring. Adjacent ribbons are cross-linked via C—H⋯O hydrogen bonds involving a sulfonyl O atom and C—H⋯π inter­actions involving the pyridinone ring

Seven papers on fused-ring heterocyclic ketones containing an N-tosyl­pyrrolo­[3,4-c]pyrano moiety. Corrigenda

Corrigenda to Acta Cryst. (2007), E63, o4363, o4364, o4434–o4435, o4436–o4437, o4438, o4489–o4490 and o4491–o4492

7-Bromo-3-ethyl-9-phenyl-2-tosyl­pyrrolo[3,4-b]quinoline

In the title compound, C26H27BrN2O2S, the pyrrolidine ring adopts a twist conformation, while the tetra­hydro­pyridine ring is in a half-chair conformation. The two rings are trans-fused. The dihedral angle between the phenyl ring and the sulfonyl-bound benzene ring is 22.83 (7)°. N—H⋯O hydrogen bonds link the mol­ecules into a chain along the b axis, and the chains are cross-linked into a three-dimensional network by a C—H⋯π inter­action and a weak π-π inter­action between the sulfonyl-bound benzene rings; the centroid–centroid distance is 3.6957 (8) Å

3-Ethyl-9-phenyl-2-tosyl-2,3,3a,4,9,9a-hexahydro-1H-pyrrolo[3,4-b]quinoline

In the mol­ecule of the title compound, C26H28N2O2S, the pyrrolidine ring adopts an envelope conformation and the tetra­hydro­pyridine ring is in a half-chair conformation; these two rings are trans-fused. The dihedral angle between the pyridine- and sulfonyl-bound benzene rings is 36.15 (5)°. In the crystalline state, the mol­ecules are linked into a two-dimensional network parallel to the ab plane by C—H⋯O and C—H⋯π inter­actions

cis-1-Ethyl-4,4,6,8-tetra­methyl-2-tosyl-2,3,3a,4,6,7,8,9-octa­hydro-1H-pyrrolo[3′,4′:3,4]pyrano[6,5-d]pyrimidine-7,9-dione

In the title compound, C22H29N3O5S, the pyrrolidine ring is cis-fused to the dihydro­pyran ring. The pyrrolidine and dihydro­pyran rings adopt twist and half-chair conformations, respectively. The mol­ecule is in a folded conformation; the sulfonyl-bound benzene ring lies over the pyrimidine­dione ring, with a weak π–π inter­action [centroid–centroid distance = 3.6147 (4) Å]. A weak intra­molecular C—H⋯O hydrogen bond generates an S(6) ring motif. In the crystal, molecules are linked into a three-dimensional network by C—H⋯O hydrogen bonds