title: rac-(1R,2S,6R,7R)-4-{[(1E)-(2-Chloro-phen-yl)methyl-idene]amino}-1-isopropyl-7-methyl-4-aza-tricyclo-[5.2.2.0]undec-8-ene-3,5-dione.
abstract: The title compound, C(21)H(23)ClN(2)O(2), was synthesized from N-amino-α-terpinene maleimide and 2-chloro-benzaldehyde. There are two independent mol-ecules in the asymmetric unit which are linked via an inter-molecular C-H⋯O hydrogen bond. The crystal studied was found to be a partial merohedral twin, with a 0.74 (7):0.26 (7) domain ratio.
authors.forename: Jian-Xin
authors.initials: JX
authors.lastname: Huang
authors.forename: Wen-Gui
authors.initials: WG
authors.lastname: Duan
authors.forename: Xian-Li
authors.initials: XL
authors.lastname: Ma
authors.forename: Qi-Jin
authors.initials: QJ
authors.lastname: Mo
authors.forename: Yin-Hua
authors.initials: YH
authors.lastname: Liang