Synthesis and Crystal Structure of 5-Allyl-2,3-dihydro-9-(2-hydroxy-5-oxocyclopent-1-enyl)-cyclopenta[b]chromen-1(9H)-one Monohydrate |
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引用本文: | 支三军,韦长梅,孙小军,胡华友,周建峰.Synthesis and Crystal Structure of 5-Allyl-2,3-dihydro-9-(2-hydroxy-5-oxocyclopent-1-enyl)-cyclopenta[b]chromen-1(9H)-one Monohydrate[J].结构化学,2012(5):713-717. |
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作者姓名: | 支三军 韦长梅 孙小军 胡华友 周建峰 |
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作者单位: | [1]School of Chemistry and Chemical Engineering,Huaiyin Normal University, Huaian 223300, China [2]Key Laboratory for the Chemistry of Low-dimensionalMaterials, Huaiyin Normal University, Huaian 223300, China |
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基金项目: | Industrialization Project (JHB2011-57) of the Education Committee of Jiangsu Province; Industrialization Project of Huaian City (HAG2010075) |
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摘 要: | The title compound 5-allyl-2,3-dihydro-9-(2-hydroxy-5-oxocyclopent-1-enyl)-cyclopentab]chromen-1(9H)-one monohydrate(C20H18O4.H2O,Mr = 340.36) was synthesized and crystallized.It crystallizes in the triclinic system,space group P with a = 8.5840(17),b = 8.7027(17),c = 11.561(2),α = 89.69(3),β = 74.33(3),γ = 86.13(3)°,V = 829.6(3)3,Z = 2,Dc = 1.363 g/cm3,MoKa radiation(λ = 0.71073 ),F(000) = 360,μ = 0.098 mm-1,the final R = 0.0430 and wR = 0.1008 for 2957 observed reflections with(I > 2σ(I)).X-ray analysis reveals that atoms C(1),C(2),C(3),C(4),C(5) and O(1) on the new pyran ring are coplanar,which is obviously different from the half-chair or boat conformations of other similar compounds.
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关 键 词: | crystal structure chromene conformation monohydrate |
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