异丁基
- 与 异丁基 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Water,c12-20 acid peg-8 ester,octyldodecanol,propylene glycol,coco-caprylate/caprate,cetearyl isononanoate,prunus amygdalus dulcisoil,biosaccharide gum-1,phenoxyethanol,ethylhexyl methoxycinnamate,potassium cetyl phosphate,simmondsia chinensisseed oil,carbomer,glyceryl polymethacrylate,malva sylvestrisextract,glyceryl stearate,cetearyl alcohol,cetyl palmitate,cocoglycerides,c12-13 alkyl lactate,methylparaben,sorbic acid,disodium edta,sodium hydroxide,tocopheryl acetate,benzophenone-3,iris germanica root extract,retinyl palmitate,butylparaben,peg-8,propylparaben,ethylparaben,sodium hyaluronate,chlorhexidine digluconate,tocopherol,ascorbyl palmitate,citric acid,ascorbic acid
水, c12-20 acid peg-8 ester,辛基十二烷醇,丙二醇,coco-caprylate/caprate,鲸蜡硬脂醇异壬酸酯,甜杏仁油,多醣物质,苯氧乙醇,4-甲氧基肉桂酸-2-乙基己基酯,十六烷基磷酸钾,西蒙得木籽油,卡波姆,甘油聚甲基丙烯酸酯,锦葵萃取,甘油硬脂酸,棕榈醇,十六烷基棕榈酸酯,椰油脂酸甘油酯类,c12-13烷醇乳酸酯,对羟基苯甲酸甲酯,山梨酸,乙二胺四乙酸二钠,氢氧化钠,维生素E醋酸酯,二苯甲酮-3,鸢尾花萃取,维他命A酯,对羟基苯甲酸丁酯,聚乙二醇-8,羟苯丙酯,羟苯乙酯,透明质酸钠,洗必泰葡萄糖酸盐,维生素E ,维生素C棕榈酸酯,柠檬酸,抗坏血酸
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The auxiliary can be recovered in high yield (81%) only by filtering and recrystallization. Besides, some other aldehydes have been chosen to test the enantioselectivity of N,N\'-dibenzyl tartamide, in comparison with two other allylaborates reagents developed previously by Roush and Brown, respectively. The results show that %e.e. of homoallylic alcohol is superior to that of the former, and approaches the Brown reagent.
产物经S_N2反应得瑞格列萘中间体-甲基烯丙基-2-氯苯基-叠氮甲烷(17);同时,将筛选出的新型手性配体N-苄基酒石酸二酰胺用于其他几种醛(正丁醛,异戊醛和环己醛)的不对称烯丙基化反应,并与广泛应用的Roush配体(22)和Brown配体(27)相比较,发现其立体选择性优于Roush配体,并接近Brown配体,但明显具有可回收利用的优势。
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When the catalyst was triethylamine, the water produced in condensation of isopropanolamine or ethanolamine and butanone was removed with benzene by water segregator, then the dichloroacetyl chloride was dropped.
利用异丙醇胺、乙醇胺、丁酮和二氯乙酰氯为原料,分别合成了两种除草剂安全剂Ⅰ∶3-二氯乙酰基-2,5-二甲基-2-乙基-1,3-噁唑烷和Ⅱ∶3-二氯乙酰基-2-甲基-2-乙基-1,3-噁唑烷。
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The optimal carrier gas velocity of prepared SE-30 series capillary chromatographic columns was studied and used to separate isomeric compounds. The efficiency of SE-30 capillary chromatographic columns has been studied with different diameters, film thicknesses and oven temperatures, using n-do-decane, phenol, aminobenzene, and butyl acetate as test samples.
研究自制的SE-30系列毛细管气相色谱柱的载气最佳线速度,并应用于同分异构体的色谱分离分别用十二烷、苯酚、苯胺、醋酸丁酯作试祥在不同载气线速条件下对不同口径、不同膜厚、不同柱温的SE-30毛细管色谱柱的柱效进行考察,并在最佳线速度条件下分离异戊醇、硝基氯苯、硝基甲苯及二乙苯同分异构体体系。
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Water,butylene glycol,cyclomethicone,VP/VA copolymer,glyceryl stearate,glycerin,ppg-15 stearyl ether,titanium dioxide,propylene glycol,cetyl alcohol,citrus aurantium dulcisfruit extract,saccharide isomerate,biosaccharide gum-1,ethoxydiglycol,peg-40 stearate,glycyrrhiza glabraroot extract,morus bombycis root extract,potassium cetyl phosphate,phenoxyethanol,c12-20 acid peg-8 ester,triethanolamine,prunus amygdalus dulcis oil,carbomer,caprylyl glycol,caffeine,disodium edta,methylparaben,chondrus crispus,butylparaben,iris germanica root extract,pentadecalactone,sodium polyacrylate,ethylparaben,sodium hyaluronate,peg-8,propylparaben,citric acid,chlorhexidine digluconate,tocopherol,ascorbyl palmitate,ascorbic acid
水,丁烯二醇,环甲硅脂,VP/VA共聚物,甘油基硬脂酸,甘油,ppg-15 stearyl ether,二氧化钛,丙二醇,十六烷基醇,橙子萃取物,天然异构寡糖, biosaccharde gum-1,乙基氧基乙二醇,聚乙二醇- 40硬脂酸,甘草根提取物,桑白皮根萃取,钾十六烷基磷酸盐,苯氧乙醇,c12-20 acid peg-8 ester,三乙醇胺,甜杏仁油,高分子胶,辛乙二醇,咖啡因,乙二胺四乙酸二钠,对羟基苯甲酸甲酯,卡拉胶,对羟基苯甲酸丁酯,鸢尾花根萃取, pentadecalactone ,聚丙烯酸钠,羟苯乙酯,透明质酸钠,聚乙二醇- 8,羟苯丙酯,柠檬酸,洗必泰葡萄糖酸盐,维生素E,维生素C棕榈酸酯,抗坏血酸
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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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Aqua, Sorbitol, PPG-1 PEG-9 Lauryl glycol ether, Hydrolyzed elastin, Hydrolyzed wheat gluten, Hydrolyzed collagen, Hydrolyzed glycosamino-glycans, Humulus lupulus, Propylene glycol, Triethanolamine, Sodium hydroxide, Carbomer, Maris limus extract, Ostrea extract, Imidazolidinyl urea, Parfum, Benzyl salicylate, Coumarin, Alpha isomethyl ionone, Hexyl cinnamal, Buthylphenylmethylpropionate, Linalol, Methylisothiazolinone, Methylchloroisothiazolinone.
水,山梨醇, PPG 公司- 1聚乙二醇- 9十二烷基醇醚,水解弹性蛋白,水解小麦面筋蛋白,水解胶原蛋白水解粘多糖,多聚糖,啤酒花提取物花,丙二醇,三乙醇胺,氢氧化钠,卡波姆,马里斯提取物,牡蛎提取物,咪唑烷基脲,香水,水杨酸苄酯,香豆素,阿尔法 l 紫罗兰酮,己基肉桂醛,丁苯基甲基丙醛,芳樟醇,甲基异噻唑啉酮,甲基氯异塞唑晽酮。
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Other methyl nucleophiles includingMeMgBr, MeCeCl2, MeTiCl3, Me3Al, Me3ZnMgCl, MeMnClwere tried, but in all these cases no detectable amount of exo-C8-methylated product was obtained. Although protecting C3-carbonyl as 1,3-dioxolanes could be achieved, the serious enolization of C8-carbonyl was still problematic. Converting C9-furan ring to α,β-butenolide did depress the enolization, but desired C8-methylation was completely replaced by migration of the double bond of the butenolide.
在本论文的早期阶段,主要着眼于解决二环[3.2.1]-C8-羰基加成甲基所遇到的C9-呋喃环差向异构化和C3与C8两个羰基之间化学选择性的问题:通过引入不同金属降低甲基试剂的碱性并没有取得甲基化的成功;通过不同的方法将C3-羰基掩蔽,但是C8-羰基的烯醇化依然无法抑制;虽然通过将呋喃环转化为α,β-不饱和-γ-丁内酯可以抑制烯醇化,但内酯环上的双键迁移又成了新的竞争反应。
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Following resolution, the following steps are performed: reduce the isomer to an alcohol, react the alcohol with triphenylmethyl chloride, ozonalyze the resulting reaction product, reduce the ozonalyzed product to yield a diol and react the diol with a methane sulfonyl compound to form-3-2-{(methylsulfonyloxy}ethoxy-4--1-butanol methane sulfonate.
拆分后,进行下一步:将异构体还原为醇,使醇与三苯基甲基氯反应,臭氧化所得反应产物,还原臭氧化产物以得到一种二醇并使所述二醇与甲烷磺酰基化合物反应以形成-3-2-{(甲基磺酰基氧}乙氧基-4--1-丁醇甲烷磺酸酯。
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In the paper, new type of polyurethane ionomers containing carboxyl in soft segments was synthesized with IPDI, DMBA, carboxylated polycaprolactone etc.
本文利用一种新型的聚己内酯、异佛尔酮二异氰酸酯、二羟甲基丁酸等合成了软段含有羧基的聚氨酯离聚体。
- 推荐网络例句
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We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.
索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称;三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起,称之为挽歌体诗人或者史诗诗人,他们被称为诗人,似乎只是因为遵守格律写作,而非他们作品的模仿本质。
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The relationship between communicative competence and grammar teaching should be that of the ends and the means.
交际能力和语法的关系应该是目标与途径的关系。
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This is not paper type of business,it's people business,with such huge money involved.
这不是纸上谈兵式的交易,这是人与人的业务,而且涉及金额巨大。