目的 :系统研究诃子的化学成分。方法 :反复利用硅胶、凝胶色谱技术对诃子的化学成分进行分离、纯化 ,应用化学及波谱方法确定他们的结构。结果 :共分离鉴定出 2 1个成分 ,本文报道 8个多元酚类成分 :2 ,3 (S) 六羟基联苯二甲酰基 D ...目的 :系统研究诃子的化学成分。方法 :反复利用硅胶、凝胶色谱技术对诃子的化学成分进行分离、纯化 ,应用化学及波谱方法确定他们的结构。结果 :共分离鉴定出 2 1个成分 ,本文报道 8个多元酚类成分 :2 ,3 (S) 六羟基联苯二甲酰基 D 葡萄糖 [2 ,3 (S) HHDP D glucose ,TCD 11];3 ,6 二 O 没食子酰基 D 葡萄糖(3 ,6 di O galloyl D glucose ,TCD 14) ;6 O 没食子酰基 D 葡萄糖 (6 O galloyl D glucose ,TCD 17) ;(- ) 莽草酸盐4 O 没食子酸酯 [(- ) shikimide 4 O gallate ,TCD 18];(- ) 莽草酸 3 O 没食子酸酯 +(- ) 莽草酸 5 O 没食子酸酯 [(- ) shikimicacid 3 O gallate +(- ) shikimicacid 5 O gallate ,TCD 2 0 ];没食子酸甲酯 (methylgallate ,TCD 2 5 )和 1,2 ,6 三 O 没食子酰基 β D 葡萄糖 (1,2 ,6 tri O galloyl β D glucose ,TCD 2 7)的提取、分离和结构鉴定。 结论 :这展开更多
An amidoximated fiber was synthesized via a simple pathway.Its chemical and mechanical properties were determined.The static and dynamic adsorption properties to extract Au from ore liquid were studied.The highest ads...An amidoximated fiber was synthesized via a simple pathway.Its chemical and mechanical properties were determined.The static and dynamic adsorption properties to extract Au from ore liquid were studied.The highest adsorption capacities of static and dynamic were 585 mg/g and 2962 mg/g,respectively.It was concluded that this fiber might be used as a good material to extract Au from ore liquid.展开更多
The novel chiral cyclopalladated compound 2 was synthesized from the reaction of L-valinol derived ferrocenylaldimine 1 with Li2PdCl4/NaOAc followed by treatment with triphenylphosphine.2 was characterized by elementa...The novel chiral cyclopalladated compound 2 was synthesized from the reaction of L-valinol derived ferrocenylaldimine 1 with Li2PdCl4/NaOAc followed by treatment with triphenylphosphine.2 was characterized by elemental analysis,ESI-MS,IR,（）1H NMR,specific rotation and singlecrystal X-ray diffraction.The crystal of 2 contains two diastereoners with different planar chirality.It is monocline,space group P21 with Mr:787.23,a=1.0239（2）nm,b=3.2439（7）nm,c=1.0680（2）nm,α=γ=90°,β=90.12（3）°,V=3.5473（12）nm3,Z=4,Dc=1.474g/cm3,F（000）=1600.The final R1=0.0455,wR2=0.0951.X-ray analysis also reveals that the compound 2 has a one-dimensional chain structure.展开更多
文摘目的 :系统研究诃子的化学成分。方法 :反复利用硅胶、凝胶色谱技术对诃子的化学成分进行分离、纯化 ,应用化学及波谱方法确定他们的结构。结果 :共分离鉴定出 2 1个成分 ,本文报道 8个多元酚类成分 :2 ,3 (S) 六羟基联苯二甲酰基 D 葡萄糖 [2 ,3 (S) HHDP D glucose ,TCD 11];3 ,6 二 O 没食子酰基 D 葡萄糖(3 ,6 di O galloyl D glucose ,TCD 14) ;6 O 没食子酰基 D 葡萄糖 (6 O galloyl D glucose ,TCD 17) ;(- ) 莽草酸盐4 O 没食子酸酯 [(- ) shikimide 4 O gallate ,TCD 18];(- ) 莽草酸 3 O 没食子酸酯 +(- ) 莽草酸 5 O 没食子酸酯 [(- ) shikimicacid 3 O gallate +(- ) shikimicacid 5 O gallate ,TCD 2 0 ];没食子酸甲酯 (methylgallate ,TCD 2 5 )和 1,2 ,6 三 O 没食子酰基 β D 葡萄糖 (1,2 ,6 tri O galloyl β D glucose ,TCD 2 7)的提取、分离和结构鉴定。 结论 :这
文摘An amidoximated fiber was synthesized via a simple pathway.Its chemical and mechanical properties were determined.The static and dynamic adsorption properties to extract Au from ore liquid were studied.The highest adsorption capacities of static and dynamic were 585 mg/g and 2962 mg/g,respectively.It was concluded that this fiber might be used as a good material to extract Au from ore liquid.
文摘The novel chiral cyclopalladated compound 2 was synthesized from the reaction of L-valinol derived ferrocenylaldimine 1 with Li2PdCl4/NaOAc followed by treatment with triphenylphosphine.2 was characterized by elemental analysis,ESI-MS,IR,（）1H NMR,specific rotation and singlecrystal X-ray diffraction.The crystal of 2 contains two diastereoners with different planar chirality.It is monocline,space group P21 with Mr:787.23,a=1.0239（2）nm,b=3.2439（7）nm,c=1.0680（2）nm,α=γ=90°,β=90.12（3）°,V=3.5473（12）nm3,Z=4,Dc=1.474g/cm3,F（000）=1600.The final R1=0.0455,wR2=0.0951.X-ray analysis also reveals that the compound 2 has a one-dimensional chain structure.
