查询词典 rearrangement
- 与 rearrangement 相关的网络例句 [注:此内容来源于网络,仅供参考]
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III. Studies on the total synthesis of macrophllin type of bicyclo[3, 2, 1] octanoid neolignans ( C-4': endo ) The first total synthetic route of macrophllin type of bicyclo[3, 2, 1]octanoidneolignans ( C-4': endo ) was established based on the rearrangement ofbenzofuranoid and bicyclo[3, 2, 1]octanoid neolignans.
三、Macrophllin型双环[3,2,1]辛烷类新木脂素(C-4'桥环为endo)的全合成研究利用氢化苯骈呋喃类新木脂素和双环[3,2,1]辛烷类新木脂素的重排关系,首次建立了macrophllin型双环[3,2,1]辛烷类新木脂素(C-4'桥环为endo)的全合成路线。
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Starting from 2-naphthylamine,2,2′-diamino-1,1′-binaphthyl was obtained via oxidation,coupling reaction and rearrangement.
&配体催化合成&是有机化学研究领域中的前沿和热点,它是化学领域的一门交叉学科。
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A rearrangement model for the complex and its isomers of the2+ was proposed, in which there could be two competed steric courses with the trigonal bipyramidal intermediate or intermediates.
利用[Co(3,3-tri)Cl]2+体系配合物及其异构体结构模型提出了一个2+型的配合物及其几何异构体相互转换所遵循的重排机理模型。认为在该类型配合物异构体转化过程中同时存在两个竞争途径,其中间过渡态或中间体分别为三角双锥或四角锥形式。
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Novel sodium 2-2-(alkylaryloxy-alkylamidoethanesulfonates (m+nAr-T, m, n: carbon numbers; Ar: aromatic nucleus; T: taurine) with high purity were synthesized through bromization, esterification, Fries rearrangement, Pd-catalyzed hydrogenation, Williamson reaction, and acylation, et al, using carboxylic acid, phenol and taurine as starting materials. The structures and purities were characterized.
以羧酸、苯酚和牛磺酸为原料,通过溴代反应、酯化反应、Fries重排反应、催化氢化反应、Williamson反应以及催化酰胺化反应等过程,首次成功合成并表征了系列结构明确的高纯度N-酰基牛磺酸钠(m+nAr-T,m、n为烷基链碳数,Ar为芳环,T表示taurine)。
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The synthesis of poly{2-4-[bi(4-tetrabutylphenylamino]phenylphenylenenvinylene} was beginwith 4-tetrabutylbenzoic,through acylation、Hoffmann rearrangement、bromization、idionization、Ullmann reaction、bromization、condensepolymerization.
聚{2-[4-二(4-叔丁基苯胺基苯基]苯撑乙烯}是以对叔丁基苯甲酸为原料,经酰氯化、酰胺化、Hoffmann降解、碘化、Ullmann反应、溴化、缩聚反应得到。
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Methods:The target compound was synthesized using 4-hydrazino-N-methyl-benzyl-sulphonamide hydrochloride and 4,4-dimethoxy-N,N-dimethyl butylamine as the starting materials,PPA and sodium dihydrogen phosphate instead as catalysts and isopropyl ether and acetone as solvents for recrylstallization,via 4-step reactions:condensation,rearrangement,cyclization and salt formtion.
以4-肼基-N-甲基-苄基磺酰胺盐酸盐与4,4-二甲氧基-N,N-二甲基-丁胺为起始原料,改用多聚磷酸和磷酸二氢钠作为催化剂,后处理采用异丙醚和丙酮作为重结晶溶剂,经缩合、重排、环合、成盐的4步反应合成琥珀酸舒马曲坦。
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The new surfactant was synthesized from the main starting materials such as lauric acid, p-cresol, chlorosulphonic acid and ethylene diamine, by 5 classic reactions which are acyl chlorination, esterification, Fries rearrangement, sulfonation and condensation, with total yield of 58%.
作者以十二酸、对甲酚、氯磺酸、乙二胺等为主要原料,共采取了酰氯化、酯化、Fries重排、磺化和缩合等5步经典的单元反应,合成了该表面活性剂,总收率为58%,并探讨了各步反应的条件对收率的影响。
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Mechanism of rearrangement of semipinacone and cycloheptane cation were studied with HF method and STO-3G* basis set.
用HF方法,基组采用STO-3G*,分别对半片呐醇和环庚烷正离子的重排机理进行了从头算研究,计算了半片呐醇和环庚烷正离子重排过程中的各个状态的几何构型、零点能,同时对反应路径也进行了计算。
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Mechanism of rearrangement of semipinacone and cycloheptane cation were studied with HF method and STO-3G~* basis set.
用哈特里-福克方法、STO-3G*基组,分别对半片呐醇和环庚烷正离子的重排机理进行了从头算研究,计算了半片呐醇和环庚烷正离子重排过程中的各个状态的几何构型、零点能,同时对反应路径进行了计算。
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Ketoheptamethylenimine was prepared by one-pot reaction of cycloheptanone with concentrated sulfuric acid. In this step, oximation and rearrangement occurred .
制备庚内酰胺时,我们采用了&一锅反应&的方法,环庚酮、浓硫酸和硫酸羟胺混合在一起,经过肟化、重排一次得到庚内酰胺。
- 推荐网络例句
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However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.
然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。
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Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.
镀锌钢托盘多用于出口,替代木托盘,免薰蒸,符合欧盟、北美各国对出口货物包装材料的法令要求;喷涂钢托盘适用于重载上货架之用,托盘表面根据需要制作成平板状、波纹状及间隔形式,满足不同的使用要求。
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A single payment file can be uploaded from an ERP system to effect all pan-China RMB payments and overseas payments in all currencies.
付款指令文件可从您的 ERP 系统上传到我们的电子银行系统来只是国内及对海外各种币种付款。