酰基乙酸 的英文怎麼說
中文拼音 [jīyǐsuān]
酰基乙酸
英文
acyl acetic acid
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酰 :
名詞[化學] (酰基) acyl
-
酸 :
酸構詞成分。
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The synthesis process of acetimidoyl ethyl ether hydrochloride was introduced, and the preparations of acetamide, ethyl acetate, acetamidine hydrochloride, triethyl orthoacetate, n - cyan - iminoester hydrochloride and hydrazone by acetimidoyl ethyl ether hydrochloride were summarized
摘要介紹了亞氨
基乙醚鹽
酸鹽的合成工藝,總結了亞氨
基乙醚鹽
酸鹽制備
乙酰胺、
乙酸乙酯、鹽
酸乙脒、原
乙酸三
乙酯、 n -氰
基乙亞氨
酸乙酯以及腙類化合物的合成方法。
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Acetyl butyric acid methyl ester 98 % min
乙酰基丁
酸甲酯
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Acyl isethionic salt
已
酰基乙磺
酸鹽
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Abstract : in ureide - transporting legumes , ureides ( allantoin and allantoic acid ) are major transportform of biological fixed nitrogen. the distribution , properties , structure and regulation of plant allantoinase were reviewed in detail. the advances in the recent studies on allantoate amidohydrolase and ureidoglycolate amidohydrolase were introduced. and the works desired to be done were pointed out
文摘:全面綜述植物
酰脲降解代謝酶的研究現況,概述植物尿囊素酶的分佈、性質、結構,以及調節控制,並簡介植物尿囊
酸酰胺水解酶和脲
基乙醇
酸酰胺水解酶的研究近況,同時指出待研究的方向。
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The preparation method of methyl 1 - naphthylacetate catalyzed by sulphuric acid, hydrochloric acid, chlorosulfonic acid, p - toluene sulfonic acid, amino sulfonic acid, strongly acidic cationic exchange resin, ferric chloride hexahydrate, stannic chloride pentahydrate, aluminium chloride, ferric sulfate, aluminium sulfate, titanium sulfate, sodium bisulfate monohydrate, solid super acid, heterpoly acid, support heterpoly acid, composite titanate and p - toluene sulfo - chloride etc. catalyst were reviewed
摘要評述了硫
酸、鹽
酸、氯磺
酸、對甲苯磺
酸、氨
基磺
酸、強
酸性陽離子交換樹脂、六水三氯化鐵、五水四氯化錫、三氯化鋁、硫
酸鐵、硫
酸鋁、硫
酸鈦、一水硫
酸氫鈉、固體超強
酸、雜多
酸、固載雜多
酸、復合鈦
酸酯和對甲苯磺
酰氯等催化劑催化合成1 -萘
乙酸甲酯的方法。
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First, a terminal double bond was introduced into 3 - amino - 9 - ethylcarbazole ( aec ) via methacryloyl chloride to obtain the compound, 3 - ( n - methacryloyl ) amino - 9 - ethylcarbazole ( mec ). second, mec was copolymerized with butyl methacrylate to prepare the mec - immobilized polymer particles. the resultant polymer particles were used as a fluorescence probe, which was almost free of dye leaching, and had higher photostability in comparison with free aec
首先利用甲
基丙烯
酰氯向3 -氨
基- 9 -
乙基咔唑( aec )分子中引入末端雙鍵,得到帶末端雙鍵的熒光指示劑3 - ( n -甲
基丙烯
酰基)氨
基- 9 -
乙基咔唑( mec ) ,然後通過乳液聚合技術將mec共價固定到聚甲
基丙烯
酸丁酯
基體上,制得一種共價固定了mec的聚合物顆粒。
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In this thesis, new fluorescence carriers with good properties were synthesized and copolymerized under uv irradiation on the silanized glass or quartz disk and - the sensors prepared were studied. ( 1 ) n - propyl - 4 - ( n - methylacryloxy - ethyl ) amino - 1, 8 - naphthalimide ( pmean ) was synthesized and used for determination of picric acid. the linear range of the sensor is 9. 80x10 - 7 - 1. 96x10 - 4 mol i - 1
( 1 )合成了n -丙
基- 4 - ( n -甲
基丙烯
酰基氧
乙基)氨
基- 1 , 8 -萘
酰亞胺( pmean ) ,研製出了苦味
酸熒光光纖傳感器,可間接測定藥片中磷
酸氯喹和水樣中苦味
酸的含量。
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Tao feng changzhou chemical company located in the jiangsu international plastics city, is in changzhou city, the river additives ltd. and jurong city tao reagent production plant product sales window, the major products : toluene, pure benzene, xylene, n - octanol, ethyl acetate, acetic acid small fat, silicone oil, aniline, poly - succinimide, benzene triazole derivatives, isopropanolamine, ethanolamine, alkylation two aniline, scale inhibitor, promoting agents, antioxidants, ppd, defoamer, metal deactivator, hx - 3308 scale and corrosion inhibitor, hx03 - 12 diesel flow improver, parathion octyl - zinc chloride bridge acid, chlorine bridge anhydride, chlorobenzene, double - dicyclopentadiene, norbornene anhydride
常州濤峰化工有限公司座落在江蘇國際塑化城,是常州市夏溪助劑有限公司和句容市龍濤試劑廠生產的產品的銷售窗口,主要經營產品:甲苯、純苯、二甲苯、辛醇、
乙酸乙脂、
乙酸丁脂、硅油、二苯胺、雙聚丁二
酰亞胺、苯三唑衍生物、異丙醇胺、
乙醇胺、烷
基二苯胺、防垢劑、促進劑、抗氧劑、降凝劑、消泡劑、金屬鈍化劑、 hx - 3308阻垢緩蝕劑、 hx03 - 12柴油流動改進劑、硫磷丁辛
基鋅鹽、氯橋
酸、氯橋
酸酐、氯苯、雙聚環戊二烯、降冰片烯二
酸酐等。
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In order to find replacer for metronidazole and drug selection. some diesters or esters of acids containing nitrogen with metronidazole were designed and synthesized, which have difference in water - solubility. metronidazole was reacted with the corresponding amino or imino multi - carboxylic acid compounds in the presence of acetic anhydride or thionyl chloride or dcc. the intermediate of nitrilotriacetic acid with ac
為尋找羥
乙基甲硝唑的替代物,分別採用
酸酐法
酰氯法或dcc法,將氨
基羧
酸與羥
乙基甲硝唑反應,得到5個親水性不同的單酯或二酯,用ms譜確證了次氨
基三
乙酸與
乙酸酐反應的中間物,並對得到的酯的
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Abstract : methanesulfonic acid method was used to prepare five acylated chitins. except heptanoyl chitin, four of them, i. e. acetyl chitin, propionyl chitin, butyryl chitin and hexanoyl chitin, had high degree of substitution ( from 1. 5 to 2. 0 ) and exhibited lyotropic liquid crystalline behavior and cholesteric phase. as the length of the side chain increased the critical concentration ( w / w ) somewhat increased from 0. 21 to 0. 26 because the chain rigidity dropped. the critical concentration values of all the four derivatives were much higher than that of chitin ( 0. 12 ) due to the decrease of intramolecular hydrogen bonds. the four acylated chitin can form typical banded texture after being sheared. there minimum concentrations to form banded texture of them were evidently different, varied from 0. 25 ( for acetyl chitin ) to 0. 37 ( for hexanoyl chitin ). these results further indicated that liquid crystallinity decreased while the length of flexible side substituents increased
文摘:四種羧
酰化甲殼素即
乙酰化、丙
酰化、丁
酰化和己
酰化甲殼素在二氯
乙酸溶液中均呈現膽甾型溶致液晶相.臨界濃度隨側
基長度增加而略有增加,衍生物的臨界濃度明顯都比原甲殼素高許多,這些規律都可以用鏈剛性的變化來解釋.四種羧
酰化甲殼素在剪切時均能形成條帶織構,而且能形成條帶織構的最低濃度有明顯差別,隨側
基長度增加而提高,進一步表明側
基較長,液晶性減少
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The amino group becomes attached to the coenzyme to form pyridoxamine phosphate, and is then transferred to the a - keto acid, which is usually pyruvic acid, oxaloacetic acid, or - ketoglutaric acid
反應中氨
基首先連接在輔酶上形成磷
酸吡哆氨,然後氨
基轉移到-酮
酸上,這種-酮
酸可以為丙酮
酸、草
酰乙酸或是-酮戊二
酸。
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The barnidipine hydrochloride were prepared via cyclocondensation from m - nitrobenzaldehyde, methyl acetoacetate and anmmonium bicarbonate, hydrolysis, esterification with opticaliy ( s ) - n - benzyl - 3 - py - rrolidinol, recrystallisation and salification
摘要研究了以碳
酸氫銨,間硝
基苯甲醛和
乙酰乙酸甲酯為原料,經縮合、部分水解,再與( s ) - n -芐
基3 -羥
基吡咯烷經酯化、分步重結晶、成鹽得到鹽
酸巴尼地平的工藝路線。
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Aspartic acid an amino acid formed by transamination, in which the amino group of dlutamic acid is transferred to oxaloacetic acid
天冬氨
酸:由轉氨
基作用形成的一種氨
基酸,谷氨
酸的氨
基基團被轉移到草
酰乙酸中。
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Its headquarter is located at xinkailu no. 8, xuanhua district of zhangjiakou city. its main products include ziyun brand civil explosive products series : powdery ammonium nitrate explosive emulsion explosive industrial fuse ; ziyun brand fine chemical products series : glyoxalic acid 5 - 4 - hydroxyphenyl hydantoin p - hydroxyphenylacetic acid p - hydroxyphenylacetamide allantoin daidzein bufexamac ; aaa brand fine chemical products series : ethylamine methanol trimethylacetic acid tert - valeryl chloride ; great wall brand agricultural chemical fertilizer products series : ammonia urea ammonium bicarbonate ; chenguang brand calium carbide chenguang brand acetylene carbon black xuguang brand dissolved acetylene ; and the others as sulphur ammoina liquor oxygen nitrogen, etc.
公司現有主要產品為,紫雲牌民爆產品系列:粉狀硝銨炸藥乳化炸藥工業導火索紫雲牌精細化工產品系列:
乙醛
酸對羥
基苯海因對羥
基苯
乙酸對羥
基苯
乙酰胺尿囊素大豆甙元丁苯羥
酸三a牌精細化工產品系列:
乙基胺甲醇特戊
酸特戊
酰氯長城牌農化產品系列:合成氨尿素碳銨晨光牌電石,
乙炔炭黑旭光牌溶解
乙炔。
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The association of gene polymorphisms of mgp and alad with lead blood level in children
羧
基谷氨
酸蛋白和氨
基乙酰丙
酸脫水酶
基因多態性與兒童血鉛的關系
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The results indicated that montmorillonite was intercalated by polyacrylic acid molecular. section two : preparation of polyacrylic acid / acrylamide / montmorillonite ( paa / am / mmt ) water absorbent hybrid by aqueous solution intercalated polymerization high water absorbent polyacrylate copolymer was prepared by aqueous solution intercalated copolymerization. in this reaction, the monomers were the partially neutralized acrylic acid ( aa ) and acryl amide ( am ) ; the cross - linking agent was diacryl ethylene ( egda )
第二節溶液插層共聚制備聚丙烯
酸鹽/丙烯
酰胺/膨潤土雜化吸水材料及其性能研究首次利用溶液插層共聚制備了二丙烯
酰基乙二醇酯( egda )交聯的聚丙烯
酸鹽/丙烯
酰胺/膨潤土( paa / am / mmt )雜化吸水材料。
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Methods 3, 3 - bis ( dibenzyloxyphosphoiyl ) propionic acid ( 5 ) and ( 6 ) were synthesized from tetraethyl methylene bisphosphonate via hydrolysis, chlorination of the acid, esterification, condensation, then 3, 3 - bis ( dibenzyloxyphosphoryl ) propanol ( 6 ) was obtained via selective reduction of ( 5 )
方法以亞甲
基偕二膦
酸四
乙酯( 1 ) ?原料經水解、氯膦
酰化、酯化、縮合得3 , 3二(二芐氧膦
酰基)丙
酸( 5 ) ,隨后選擇性硼氫化還原得3 , 3二(二芐氧膦
酰基)丙醇( 6 ) 。
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Butyl acetoacetic ester
乙酰丁
基乙酸酯
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Fluoroalkyl acetic acids were converted to their corresponding carbonyl chlorides, which was then reacted with o - amino benzaldehyde and ammonia gas to give 3 - ( 1 - iminofluoroalkyl ) - 1h - qunolin - 2 - ones in moderate yields
摘要用2 -氟烷
基乙酸為初始原料,用氯化亞碸或五氯化磷將其轉化為相應的
酰氯,後者在室溫與鄰胺
基苯甲醛縮合,通入氨氣迴流反應得到3 - ( 1 -亞胺
基氟烷
基) 1h -喹啉2 -酮類化合物,產率中等。
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Solubility soluble in hot water, acetone, 2 - j ketone, n, n - dimethy formamide, ethyl acetoacetate, cyclohexanoneit can recat with ethanol anhydrous
溶解性:溶於熱水及丙酮酮二甲基甲酰胺乙酸乙酯環乙酮溶於無水乙醇並發生反應