二苄基
- 与 二苄基 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
A series of novel dendrons with 1,3,5-triazine structure were synthesized by convergent strategy using cyanuric chloride, p-hydroxyazobenzene,β-naphthol, 1-hydroxyanthraquinone, 3,5-dihydroxybenzyl. They were the first generation p-phenyl-azo-phenyloxy-terminated dendron G1.0, the first generation naphthyloxy-terminated dendron G1.0, the first generation naphthyloxy-terminated and 1-anthraquinonoxy-cored dendron G, and the second generation naphthyloxy-terminated dendron G2.0.
以对羟基偶氮苯、β-萘酚为端基,三聚氯氰、3,5-二羟基苄醇为支化单体,1-羟基蒽醌为核心,用收敛法合成了一系列新型结构的含均三嗪环的树枝块:第一代端基为偶氮苯的树枝块G1.0、端基为萘氧基的树枝块G1.0、端基为萘氧基、中心为蒽醌的树枝块G、第二代端基为萘氧基的树枝块G2.0。
-
Goal compound synthesis namely: Take the vanillic acid as outset raw material, obtains 4- hydroxyl - 3- anisole methyl formate with the methyl alcohol reflux conditions, then after the etherification, the nitration, the return to original state, the ring closure response obtains 6- methoxy - 7- animal pen oxygen radical kui zuo lin - 4- alkone, then passes through the chlorination, the substitution aniline, to escape responses again and so on animal pen oxygen radical, etherification to obtain the goal compound; The goal compound and the diethylamine had the amine substitution reaction to obtain TM1, namely 4- benzene amino - 6- methoxy - 7- [2- hydroxyl - 3-(N, N- two ethyl aminos) third oxygen radical] kui zuo lin; Through zuo has the etherification with the Austria niter to respond obtains TM2, namely 4- benzene amino - 6- methoxy - 7- [2- hydroxyl - 3-(2- methyl - 5- nitryl imidazole) third oxygen radical] kui zuo lin.
目标化合物的合成即:以香草酸为起始原料,与甲醇回流条件下得到4-羟基-3-甲氧基苯甲酸甲酯,然后经过醚化、硝化、还原、环合反应得到6-甲氧基-7-苄氧基喹唑啉-4-酮,然后再经氯化、取代苯胺、脱苄氧基、醚化等反应得到目标化合物;目标化合物与二乙胺发生胺取代反应得到了TM1,即4-苯氨基-6-甲氧基-7-[2-羟基-3-丙氧基]喹唑啉;通过与奥硝唑发生醚化反应得到TM2,即4-苯氨基-6-甲氧基-7-[2-羟基-3-(2-甲基-5-硝基咪唑)丙氧基]喹唑啉。
-
Preparation of the lateral chain-4-benzyloxy-3-hydroxy butyronitrile is introduced as the substrate, the REFORMATSKY reaction is performed, then obtains the dicarbonyl ester, in the structure of which containing a chiral hydroxyl group, then performs the chiral reduction, take off the benzyl group after the protection reaction with acetonylidene,then obtains the lateral chain by oxidation.
手性侧链醛的合成:采用-4-苄氧基-3-羟基丁腈作为底物,通过REFORMATSKY反应缩合得到含有手性羟基的二羰物酯,再手性还原,丙酮叉保护后氢解脱苄,最后氧化得到侧链醛。
-
Results Compound albicanyl caffeate displayed strong antifungal property with MIC 4 μg/ml, while moderate antifungal effects (MIC16 μg/ml)were observed with compounds emodin, resveratrol, 3,4'-difluorostilbene, 2,2'-difluorostilbene and 2,3',5'-trifluorostilbene. Pakyonol, catechin, ampelopsin A, 3,4,4'-trihydroxyl- bibenzyl, 2,4'-difluorostilbene, 4-fluorostilbene,2-methyloxy-4'-fluorostilbene showed lower activity with MIC 32 μ g/ml.
结果化合物albicanyl caffeate对白色念珠菌表现出强的抗真菌活性,MIC为4μg/ml;而化合物大黄素、白藜芦醇、3,4'-二氟二苯乙烯、2,2'-二氟二苯乙烯及2,3',5'-三氟二苯乙烯显示出中等程度的抗真菌活性,MIC为16μg/ml;双联苄pakyonol、多酚类儿茶素、白藜芦醇二聚体野葡萄素A、3,4,4'-三羟基联苄、2,4'-二氟二苯乙烯、4-氟二苯乙烯及2-甲氧基-4'-氟二苯乙烯显示出较弱的抗真菌活性,MIC为32 μg/ml。
-
Temperature-sensitive hydrogels P(NIPA-co-DiAB) with aromatic group as hydrophobe was were prepared by free radical micellar crosslinking copolymerization with N-isopropyl acrylamide, N,N-dially benzylamine as comonomers, N,N-methylene-bis-acrylamide as crosslinker, sodium dodecyl sulfate as surfactant and ammonium persulfatetetramethylethylenediamine as initiator system.
以N-异丙基丙烯酰胺、N,N-双烯丙基苄胺为共聚单体、N,N-亚甲基双丙烯酰胺为交联剂、十二烷基硫酸钠为表面活性剂、过硫酸铵-四甲基乙二胺为氧化还原引发体系,采用自由胶束交联共聚法合成了疏水基团为芳香基的疏水改性温敏性智能水凝胶P(NIPA-co-DiAB)。
-
The mixed trimeric compounds containing one ferrocene unit, N,N'-bis(2-hydroxy-5-substituted benzylidene)ferrocenylmethylenediamine, have been synthesized directly through the reaction between 1 mol of ferrocenecarboxaldehyde and 2 mol of 5-substituted salicylaldehyde.
通过甲酰基二茂铁与取代水杨醛和氨反应,直接合成了含一个二茂铁的混合三聚产物, N,N'-二[2-羟基-5-取代苄烯]二茂铁甲二胺。
-
Methyl-2,3,5,6-tetrafluoro-benzene methanol was synthesized by chlorination, acylation, fluorination, esterifica- tion, reduction, bromization, reduction from terephthalic acid. Tefluthrin was obtained from-(1RS,3RS)-3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethyl cycolpropa-necarboxylate acid by reacting with 4-methyl-2,3,5,6-tetrafluoro-benzene methanol.
以对苯二甲酸为原料,经氯化、酰氯化、氟化、酯化、还原、溴化、还原七步反应合成了4-甲基-2,3,5,6-四氟苄醇,甲基苄醇与-(1RS,3RS)-3-(2-氯-3,3,3-三氟丙-1-丙烯基)-2,2-二甲基环丙甲酸一步酯化合成了七氟菊酯。
-
Analyse and compare what adopt a variety of pair of methods, the Michael addition reaction of ester of acerbity second of second of hydroxyl of protection of benzyl of the response of close nucleus addition that uses second nitrile and ester of formic acid second certainly, chloridize, cyanogen, reaction that take off carboxyl generates 3- benzyl oxygen radical the fifth of the ten Heavenly Stem the method of 2 nitrile, detailed discussion the action that wait and the by-product that arise possibly reach the reactant in each pace reaction, activator, dissolvent avoid a method.
通过对多种方法的分析和比较,确定采用乙腈和甲酸乙酯的亲核加成反应、氯化苄保护羟基、氰乙酸乙酯的Michael加成反应、脱羧反应生成3-苄氧基戊二腈的方法,并具体的讨论了每一步反应中反应物、催化剂、溶剂等的功能和可能产生的副产物及避免方法。
-
H-Tyr-OH was then react with fluorenylmethyl chloroformate in dioxane or THF to give N-Fluorenylmethoxycarbonyl-O-benzyltyosine Fmoc-Tyr(Bzl-OH in 98% yield.
酪氨酸苄醚与芴甲氧羰基氯(Fmoc-C1)反应,成功地在氨基上导入了芴甲氧羰基保护基,反应在二氧六环或四氢呋喃中进行,产率达到98%。
-
The fluorescence spectra of 4- 5 '-p-biphenylyloxadiazolyl-2' benzyl ω-p-biphenylyl polymethylene car-boxylate have been determined. The results of experi-ment show that they can form not only intramolecularexciplex but also intermolecular excimer and triplex.
测定了ω-对联苯基多亚甲基羧酸4-[5'-对联苯基〓二唑-2']苄酯的荧光发射光谱,从实验结果得到,它们不但可以形成分子内激基复合物,而且可以形成分子间激基缔合物和三分子激基复合物。
- 推荐网络例句
-
My first article for Screen Power Magazine, which is to this day is the official magazine of Jackie Chan, was a DVD review of the Hong Kong actioner Gen-X Cops, starring Nicholas Tse and Daniel Wu.
我的第一篇文章为屏幕力量杂志,在对这天是Jackie Chan 正式杂志,是香港actioner Gen X 警察的DVD 回顾,担任主角Nicholas Tse 和丹尼尔吴。
-
His lips grazed hirs, Now what are you going to do?
他的唇使吃草了 hirs,现在你将要做什麼?
-
I wasn't a huge drinker, but I enjoy it socially.
我不是一个贪杯的人,但在社交场合我会略微享受一点。