Citation: XU Hai-Zhen, XIE Li-Fen, ZHANG Hai-Li, LI Lei, MA Yuan, ZHU You-Quan. Synthesis, Dimer Crystal Structure and Herbicidal Activity of 2-(4-Ethoxybenzoyl)cyclopentane-1,3-dione[J]. Chinese Journal of Structural Chemistry, ;2014, 33(10): 1451-1454.
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The title compound 2-(4-ethoxybenzoyl)cyclopentane-1,3-dione (C14H14O4) was synthesized, and its crystal structure was studied. It crystallized in the triclinic system, space group P1 with a=8.980(2), b=9.080(2), c=15.482(3) Å, α=93.49(3), β=93.84(3), γ=107.27(3)°, Dc=1.365 g/cm3, Z=4, λ=0.71073 Å, μ(MoKα)=2.769 mm-1, Mr=246.25, V=1198.5(4) Å3, F(000)=520, the final R=0.0559 and wR=0.1278 for 2301 observed reflections with I>2σ(I). In the crystalline state, the molecular skeleton contains one enol grouping, which is intramolecularly hydrogen bonded to a neighboring keto O atom. Preliminary bioassay result showed that this compound provided 93.8% and 87.2% control of B. campestris and A. retroflexus at post-emergence at 375 g/hm2.
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Keywords:
- cyclopentane-1,3-dione,
- synthesis,
- crystal structure
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