title: 2-(3-Cyano-4-methyl-5,5-diphenyl-5H-furan-2-yl-idene)malono-nitrile.
abstract: The title compound, C21H13N3O, crystallizes with two independent molecules with similar conformations per asymmetric unit. The dihydrofuran rings are essentially planar with maximum deviations of 0.017 (1) and 0.006 (1) Å for the O atoms. The dihedral angles between the di-hydro-furan ring and the attached phenyl rings are 79.90 (6) and 82.07 (6)° in one mol-ecule and 79.36 (6) and 72.26 (6)° in the other. In the crystal, the molecules are linked by weak C-H⋯π and C-H⋯N inter-actions similar to those in other closely related crystals. The replacement of appended methyl by phenyl groups has not significantly affected the dihydrofuran ring structure or the crystal packing interactions.
authors.affiliation: Callaghan Innovation Research Limited, PO Box 31-310, Lower Hutt, New Zealand.
authors.forename: M Delower H
authors.initials: MD
authors.lastname: Bhuiyan
authors.affiliation: Callaghan Innovation Research Limited, PO Box 31-310, Lower Hutt, New Zealand.
authors.forename: Graeme J
authors.initials: GJ
authors.lastname: Gainsford
authors.affiliation: Callaghan Innovation Research Limited, PO Box 31-310, Lower Hutt, New Zealand.
authors.forename: Andrew
authors.initials: A
authors.lastname: Kay
authors.affiliation: Industrial Research Limited, PO Box 31-310, Lower Hutt, New Zealand.
authors.forename: Jack
authors.initials: J
authors.lastname: Anderson