烷基取代的 的英文怎麼說
中文拼音 [wánjīqǔdàide]
烷基取代的
英文
alkyl substituted-
Elimination of an alkyl chain substituted on an aromatic ring results in the appearance of free radicals.
在一芳香環上一個取代烷鏈的消失,結果出現自由基。A new convenient synthesis of a series of polyfluoroalkyl substituted cyclopropane derivatives was achieved by the reaction of polyfluoroalkyl iodides with diethyl allylmalonate in the presence of sodium dithionite in 45 % ~ 55 % yields
摘要以連二亞硫酸鈉為引發劑,烯丙基丙二酸二乙酯與多氟烷基碘代烷在溫和條件下反應,方便地得到一系列多氟烷基取代的環丙烷衍生物,產率45 % ~ 55 % 。This paper by using examples of disubs tution cyclohexanes with different and identical functional groups, examines some stereochemistry problems puzzling to stuaents, such as the configuvation conformation, and enantiomorphism isomers, and presents some practical solutions
摘要以基團相同和不同的二取代環己烷為例,分析了環己烷衍生物的構型、構象和對映異構等學生易模糊的立體化學問題。Cellulose acetates with different substitution degrees were synthesized with wood pulp as raw material and dodecylbenzenesulfonic acid as catalyst
摘要以木漿為纖維素原料、十二烷基苯磺酸為催化劑,制備了一系列不同取代度的纖維素醋酸酯。Moreover, hrtem observations indicate that the process is very selective : even in apparently homogenous illite or i / s, some crystals went opening and some remain unchanged. and the replacement of k cations by alkylammonium cations is not restricted to crystal edges, but extends to entire interlayer. the above facts are the basis of alkylammonium cations method applied to the diagenetic age of sedimentary rock
Iaa法是以沉積巖的粒度?年齡譜為基礎的,利用這種方法可以獲得同一樣品不同粒級伊利石的年齡,隨著粒級的減小,樣品的年齡也減小,當碎屑伊利石的含量趨于零時,可以得到自生伊利石的成巖年齡;烷基胺陽離子取代法是一種化學方法,利用烷基胺陽離子的選擇性替代性,可以去除碎屑伊利石成分中的k離子,從而能夠獲得自生伊利石的年齡。The main research now is focused on the polymerization of difluoramino substituted oxetane monomers, the preparation of neopentyl difluoramino nitrato plasticizers, and the molecular design and synthesis of cyclic n - nitramino geminal difluoramino oxidizers
目前該領域的研究工作主要集中在二氟氨基取代環氧丁烷聚合物合成,新戊基二氟氨基硝酸酯增塑劑制備,以及環n -硝胺基偕二氟氨基氧化劑的分子設計與合成上。Alkylammonium cations method is a new way to study the diagenetic age of sedimentary rocks. alkylammonium cations can replace k cations in mica and illite stoichiometrically
Iaa法和烷基胺陽離子取代法進行伊利石分離和定年是目前國際上最先進的礦物定年方法。In this paper, silsesquioxanes with functional organic substitutes were used as molecular template. the preparation of low dielectric films with narrow pore size distribution was discribed
本文使用具有功能取代基的籠形倍半硅氧烷作為分子模板劑,研究孔洞大小均勻分佈的低介電常數多孔薄膜的制備。Synthesis and characterization of alkyl substituted dimethyl phosphonates
烷基取代膦酸二甲酯的合成與表徵In this paper, three alkyl substituted dimethyl phosphonates have been synthesized by trimethyl phosphite with 1 - bromopentane, 1 - bromohexane and 1, 2 - dibromoethane. ir, 1h - nmr and 13c - nmr data of these compounds have been reported
摘要以溴戊烷、溴己烷、 1 , 2 -二溴乙烷和亞磷酸三甲酯為原料,分別合成了戊基、己基、溴乙基取代的三種膦酸二甲酯化合物。並報道了所合成的化合物的紅外光譜、核磁共振氫譜及核磁共振碳譜的數據。Three derivatives of alkoxy phthalocyanine pb were synthesized as optical limiting materials. the structures of products were characterized by means of ir, hnmr spectra and elementary analysis. and then, the phthalocyanine pb / polymethy methacrylate ( pmma ) were prepared
合成了三種烷氧基取代的金屬酞菁鉛類光限幅材料,利用元素分析、紅外光譜、核磁共振氫譜等方法,驗證了化合物的分子結構。In order to research the application of nonlinear optical materials for optical limiting, four derivatives of alkoxy metal phthaloyanines were synthesized. the structures of the products were characterized by means of ir. 1hnmr spectra and elementary analysis
為探索有機非線性光學材料在光限幅方面的應用,本論文合成了四種烷氧基取代的金屬酞菁化合物,並利用元素分析、紅外光譜、核磁共振氫譜等方法,驗證了化合物的分子結構。Effect of alkoxy substitution on the conductivity of polynaphthalene vinylene
烷氧基取代對聚萘乙炔電導率的影響However, the reserves of calcium bentonite is low and the surfactants are expensive, which bring many difficulties to industrialization. in this paper, an abundant and low cost raw material, calcium bentonite, and several new modifying agents such as compound quaternary ammonium salt with cheap caprolactam or anionic surfactant or silane coupling agent were used to synthesize new - type organobentonites, in the principal of efficient, cheap and simple
作者嘗試以資源十分豐富的鈣基膨潤土為原料,依據高效、廉價、使用簡單的原則,以傳統插層劑季銨鹽為基礎,分別用價格較低的己內酰胺、陰離子表面活性劑、硅烷偶聯劑部分取代季銨鹽作插層劑,來制備新型的有機膨潤土。分享友人