苯核 的英文怎麼說
中文拼音 [běnhé]-
In this paper, we reported the synthesis of three supramolecular complexes between - cyclodextrin and anisole, ethyl benzoate, m - cresol, respectively, which are identified by means of 1hnmr technique
摘要以-環糊精與苯甲酸乙酯、苯甲醚和間甲酚在水相中通過范德華力發生包合反應形成了主客體超分子絡合物,並用核磁共振氫譜對絡合物進行了表徵。All data indicated that f i was a pure substance. third, using modern analytic techniques such as nucleic magnetic resonance ( nmr ), infrared spectroscopy ( ir ), ultraviolet visible absorption spectra ( uv ) and mass spectrometry ( ms ), we analyzed the basic chemical structure of f i and nominated it phthalic acid di ( 3 - methyl ) nanyl ester ( pdne ). we estimated primarily it was a novel natural compound
第三,利用核磁共振,紅外光譜,紫外分析,質譜等現代分析測試技術對分離提取物f進行結構鑒定,解析出f的結構,初步推斷該物質為鄰苯二甲酸- ( 3 -甲基)壬酯( pdne ) ,根據目前所掌握的資料,還沒有檢索到該物質相關的報道,初步認定為一種新型的天然產物。Any of a group of red dyes used as a biological stain, especially to detect the presence of rna
焦寧;二苯氧芑膠染料用作生物染色劑的一組紅色染料中的任一種,尤指用來探測核糖核酸的存在In the case of the unsaturated alcohols, such as hydroxyethyl acrylate ( hea ), the paes showed the photo - alignment property to the nematic liquid crystals with the pretilt angle of 0. 60 ? secondly, three kinds of fluoro - containing diamine monomers were prepared via the reduction reactions of the corresponding dinitro compounds, which were synthesized via the nitro nucleophilic displacement reactions of 3, 5 - dinitro - 5 - trifluoromethyl benzene with diphenol compounds
此外,本論文還設計並通過3 , 5 -二硝基三氟甲苯與二酚化合物的硝基親核取代反應制備了二硝基化合物,將其還原最終合成了三種間位取代的含氟二胺單體tfpda 、 tfbpda與tfmda ,並對其聚合行為進行了研究。The catalytic activity of ( hmbp ) 2ticl2was lower than - diketonate titanium catalysts. the catalytic activity of dinuclear - diketonate titanium catalysts was comparative to mononuclear ones. however, the dinuclear - diketonate titanium catalyst showed the synergism effect, for example, the lower catalyst concentration and the molar ratio of al to ti, the activity reached the maximum value at 80, the melting temperature of polymer was enhanced
2 -羥基苯酮鈦[ ( hmbp ) _ 2ticl _ 2 ]的催化活性低於-二酮鈦類催化劑;雙核催化劑在催化活性方面與對應單核催化劑相差不多,但在聚合規律上表現出與單核催化劑不同的雙核協同作用,如聚合所需的催化劑濃度、助催化劑甲基鋁氧烷mao量降低,活性在80時出現極值,熔點提高等,而且雙核催化劑是單活性中心催化劑。The second strategy include that a metallic nickel ( ni ) core was encapsulated with a polymeric polystyrene ( pst ), and then coated with an outlayer of dielectric titania to form ni / pst / tio2 composite particles. the morphology and structure of the particles were characterized by tem, sem, tg - dta, xrd, and ft - ir
其次,以聚苯乙烯包覆金屬鎳粉,形成了ni pst磁性聚合物微球,然後在該微球外包覆二氧化鈦,制得了粒徑均勻、形態良好的鎳聚苯乙烯二氧化鈦( ni pst tio _ 2 )無機-有機結構的多層核-殼復合微球。In this study, it has been put forward that taking reactive nanometer magnetic fe304 particles as magnetic nucleus, and the copolymer of styrene ( st ) ? crylic acid ( aa ) as macromolecular shell, we could synthesize, magnetic polymer composite microspheres containing carboxyl groups on their surface, then microspheres are activated by thionylchloride, the surface of such magnetic composite microspheres thus produced had reactive acid chloride groups which then react with the free amino groups of the free soluble enzymes to give peptide bonds ( ? o ? h ?,
本研究首次提出了以納米級磁性fe _ 3o _ 4粒子為核心,苯乙烯( st ) ?丙烯酸( aa )共聚物為高分子殼層,合成了表面帶羧基的磁性高分子復合微球,然後將這種微球用二氯亞碸進行活化處理,在其表面形成了反應性酰氯基團,該基團可以與游離酶的氨基形成肽鍵,從而將游離酶固定化。Synthesis and application in ethylene polymerization of p - biphenylene - bridged dinuclear zirconocenes
聯苯基橋連雙核茂鋯化合物的合成及催化乙烯聚合Based on the liquid crystal polymer theory, two kinds of polyacrylates were synthesized by choosing biphenyl group as rigid nucleus of mesophase group and six methylene chain as flexible spacing group. an important chiral additive was synthesized by choosing l ( - ) ~ 2 - octanol as chiral group. mixture was made of the additive and liquid crystalline polymer, which structure was identified by ftit, " ii nmr, dsc and pom
本論文根據液晶分子結構理論,選擇聯苯基作為介晶基元的剛性核、柔性的六亞甲基脂肪鏈為柔性間隔基,與丙烯酸反應,合成了兩種丙烯酸酯型聚合物;以拆分的l ( - ) 2 -辛醇為手性基團合成了一種液晶手性添加劑,並將所合成的手性添加劑與液晶聚合物共混,採用ftit 、 ~ 1h - nmr 、 dsc 、 pom等手段對合成的化合物、共混物進行了表徵。2 with dispersion - polymerization, taking above reactive nanometer magnetic fe304particles as nucleus, and the copolymer of styrene ( st ) ? crylic acid ( aa ) as macromolecular shell, we could synthesize, magnetic polymer composite microspheres containing carboxyl groups on their surface
2採用分散聚合法,以上述反應型納米磁性fe _ 3o _ 4粒子為核心,苯乙烯( st ) ?丙烯酸( aa )共聚物為高分子殼層,合成了表面帶羧基的磁性高分子復合微球。Mirtazapine was prepared by a seven - step reaction, namely nucleophilic ring - opening reaction, chlorination, cyclization, uncleophilic substitution, hydrolysis, reduction and cyclization from styrene oxide and n - methylethanolamine as the starting materials, with overall yield of 22. 6 %
摘要以環氧苯乙烯和n -甲基乙醇胺為起始原料,經親核開環、氯代和環合反應得到中間體1 -甲基3 -苯基哌嗪。Clinical analysis on the bone marrow cell picture of benzene - induced acute monocytic leukemia
苯致急性單核細胞白血病骨髓象的臨床分析Vanadium complexes with catecholate or pyrazine 2 - carboxylate ligands were prepared and characterized by fourier transform infrared spectroscopy, 1h nuclear magnetic resonance spectroscopy, ultraviolet - visible spectroscopy, and elemental analysis
制備了含苯磷二酚配體或吡嗪2 -羥酸酯配體的釩配合物,並運用傅里葉變換紅外光譜、核磁共振譜、紫外可見光譜及元素分析對其進行了表徵。Nucleophilic aromatic substitution. strategies in the synthesis of multisubstituted benzene derivatives
親核性芳香取代。多取代苯衍生物合成的策略。Directing effects in electophilic aromatic substitution. nucleophilic aromatic substitution. strategies in the synthesis of multisubstituted benzene derivatives
31親電性芳香取代的定位效應。親核性芳香取代反應。合成多取代苯衍生物的策略。Preparation and characterization of polyaniline doped with binuclear cobalt hexasulfonatephthalocyanine
雙核磺化酞菁鈷摻雜聚苯胺膜的制備和表徵This paper was studied by using interfacial polymerization to produce the photochromic dyes microcapsules, which were made from urea and melamine polymer as shell, photochromic dyes as core and toluene as solvent
摘要本研究以界面聚合法制備光可變色性染料微膠囊,以尿素、美耐明為殼物質,光可變色性染料為核物質,甲苯為溶劑。Study on the phenolic oxidation by h2o2 using dinuclear copper metallomicelles as synthetic peroxidases
雙核銅配合物形成的金屬膠束模擬過氧化物酶催化過氧化氫氧化苯酚的研究Methods in the reaction of acetylation in the presence of triethylamine and toluene at 110 of three hours, the products are characterized by thin - layer chromatography analysis, elementary analysis, ir and hnmr analysis
方法以三乙胺為催化劑,甲苯為溶劑,在110反應3h制備目標產物,並對產物進行了薄層色譜、元素分析、紅外、核磁的分析鑒定和表徵。分享友人