1',6-Dimethyl-4'-phenyl-dispiro-[1-benzopyran-3(4H),3'-pyrrolidine-2',3''-indoline]-2,2''-dione.
In the title compound, C(27)H(24)N(2)O(3), the five-membered pyrroldine ring adopts an envelope conformation (with the N atom in the flap position) and the six-membered pyran-one ring of the coumarine ring system adopts a slightly distorted boat conformation. The oxindole unit makes dihedral angles of 89.7 (1) and 25.6 (1)°, respectively, with the pyrrolidine ring and the coumarin ring system. The mol-ecular structure is stabilized by two intra-molecular C-H⋯O contacts and two intra-molecular π-π inter-actions [centroid-centroid seperations of 3.514 (1) and 3.623 (1) Å]. The crystal packing features N-H⋯O hydrogen bonds, which link the mol-ecules into cyclic centrosymmetric R(2) (2)(8) dimers, and C-H⋯π inter-actions.
D
D
Lakshmanan
S
S
Murugavel
D
D
Kannan
M
M
Bakthadoss