三羟基苯酸
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Three ways leads to the synthesis of fenclorin, one way discussed here has 3 steps. Stepl :benzonitrile using as raw material goes though dry hydrogen chloride and becomes a-imino phenylmethyl ether after meet carbinol.
解草啶的合成主要有三条路线,本文选取合成路线是以苯甲腈为原料,经三步反应而成:1、苯甲腈在干燥的氯化氢通入,与甲醇形成亚氨基苯甲醚,通入氨气后置换甲氧基得到苯基脒盐酸盐(收率76.18%)。2、苯基脒盐酸盐在碱性条件下与丙二酸二乙酯环合而得嘧啶醇(收率84.39%)。3、嘧啶醇在三氯氧磷中羟基被氯化得到产品解草啶(收率87.29%)。
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Water,Hydrogenated Polyisobutene,Cyclohexasiloxane,Glycerin,Alcohol Denat,Cetearyl Alcohol,PEG-20,Petrolatum,C13-14 Isoparaffin,Zea Mays Oil,Tocopheryl Acetate,Hydroxypropyl Tetrahydropyrantriol,Hydrolyzed Soy Protein,CI 14700/Red 4,Phenoxyethanol,Adenosine,PEG-100 Stearate,Ethylparaben,Triethanolamine,Polyacrylamide,Malus Domestica Stem Cell Culture,CI 19140/Yellow 5,Dimethyl Isosorbide,Dimethicone,Dimethiconol,Limonene,Xanthan Gum,Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate,Linalool,2-Oleamido-1,3-Octadecanediol,Capryloyl Salicylic Acid,Acrylates/C10-30 Alkyl Acrylate Crosspolymer,Passiflora Edulis Seed Oil,Disodium EDTA,Castanea Sativa Seed Extract,Butyrospermum Parkii· Cetyl Alcohol,Butylene Glycol,Octyldodecanol,Cetearyl Glucoside,Methylparaben,Citronellol,Prunus Armeniaca Kernel Oil,Laureth-7,Coumarin,Oryza Sativa Bran Oil,Glyceryl Stearate,Fragrance
水,甘油,氢化聚异丁烯,液体石蜡/矿油,丁二醇,环己硅氧烷,鲸蜡醇,甘油硬脂酸酯,棕榈油,玉米胚芽油,PEG-100硬脂酸酯,白蜂蜡/蜂蜡,肉豆蔻醇肉豆蔻酸酯,石蜡,香精,腺苷,苧烯,山梨醇,CI 14700,CI 19140,稻糠油,杏仁油,EDTA二钠,羟丙基四氢吡喃三醇,苯氧乙醇,聚乙二醇-14M,异十六烷,氢氧化钠,辛基十二醇,季戊四醇四(双-t-丁基羟基氢化肉桂酸)酯,山梨坦三硬脂酸酯,水解大豆蛋白,卡波姆,鸡蛋果籽油,苹果果实提取物,欧洲栗籽提取物,异山梨醇酐二甲醚,聚山梨醇酯-80,辛酰水杨酸,2-油酰胺基-1,3-十八烷二醇,氯苯甘醚,麦芽糖醇,香豆素,黄原胶,微晶蜡,丙烯酰胺/丙烯酰基二甲基牛磺酸钠共聚物,丙二醇,芳樟醇,香茅醇,玉米油,羟苯丙酯,羟苯甲酯
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During the manufacturing of the critical intermediate cephalosporin nucleus --7-amino-3-chloro-cephalosporanic acid diphenylmethyl ester hydrochloride salt, first the feasibility of the one-pot synthetic route of open loop, closed loop and ozonization when chlorine is passed over is qualified by experiments. Then the critical factors that will influence this reaction are studied as follows: the mol ratio of triphenyl phosphite and Diphenylmethyl 3-hydroxy-7-phenylacetaminoceph-3-em-4-carboxylate-l-oxide is four to one; the quantity of the stablizer should be at least more than two to one. The temperature of the system must be 25℃ when chlorine is passed over so that the hydrochloride can be precipitated to obtain cephalosporin nucleus of cefaclor--7-amino-3-chloro-cephalosporanic acid diphenylmethyl ester hydrochloride salt.
在制备关键中间体头孢母核7-氨基-3-氯头孢烷酸二苯甲酯盐酸盐时,先通过实验验证把开环、闭环、臭氧化三步在通入氯气时并为一锅煮的合成路线的可行性之外,又研究了影响该反应的几个重要因素:亚磷酸三苯酯与3-羟基-7-头孢烷-5-亚砜-2-甲酸二苯甲酯的摩尔比为4:1;稳定剂2-甲基-2-丁烯的用量至少大于2:1,通入氯化氢气体时体系温度在25℃时盐酸盐则能够顺利析出,获得头孢克洛的头孢母核—7-氨基-3-氯头孢烷酸二苯甲酯盐酸盐。
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Ingredients: water,glycerin,caprylic/capric triglyceride,cetyl alcohol,squalane,glyceryl stearate,panthenol,betaine,dimethicone,lavandula angustifoliaoil,allantoin,carbomer,xanthan gum,parfum,triethanolamine,tocopheryl acetate,hyaluronic acid,methyl paraben,propyl paraben,creatine,tetrasodium edta,phenoxyethanol,caprylyl glycol,sorbic.
成分:去离子水,甘油,辛酸/葵酸三甘油酯,鲸蜡醇,角鲨烷,硬脂酸甘油酯,泛醇,甜菜碱,聚二甲基硅氧烷,薰衣草精油,尿囊素,卡波姆,汉生胶,香精,三乙醇胺,生育酚乙酸酯,透明质酸,对羟基苯甲酸甲酯,对羟基苯甲酸丙酯,肌酸,乙二胺四乙酸四钠,苯氧乙醇,辛二醇,山梨酸。
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Ingredients:Water,Glycerin,Caprylic/Capric Triglyceride,Cetearyl Alcohol,Squalane,Glyceryl Stearate,Panthenol,Betaine,Dimethicone,Oiea Europaea Oil,Allantoin,Glyceryl Stearate Se,Carbomer,Xanthan Gum,Parfum,Triethanolamine,Tocopheryl Acetate,Hyaluronic Acid,Methyl Paraben,Propyl Paraben,Creatine,Tetrasodium Edta,Phen-oxyethanol,Caprylyl Glycol,Sorbic.
成分:去离子水,甘油,辛酸/葵酸三甘油酯,鲸蜡硬脂醇,角鲨烷,硬脂酸甘油酯,泛醇,甜菜碱,聚二甲基硅氧烷,橄榄油,尿囊素,自乳化硬脂酸甘油酯,卡波姆,汉生胶,香精,三乙醇胺,生育酚乙酸酯,透明质酸,对羟基苯甲酸甲酯,对羟基苯甲酸丙酯,肌酸,乙二胺四乙酸四钠,苯氧乙醇,辛二醇,山梨酸。
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Ingredients:Water,Glycerin,Caprylic/Capric Triglyceride,Myristyl Myristate,Butyrosper-mum Parkii Butter,Glyceryl Stearate,Panthenol,Betaine,Dimethicone,Oiea Europaea Oil,Allantoin,Polysorbate-60,Carbomer,Xanthan Gum,Parfum,Triethanolamine,Tocopheryl Acetate,Hyaluronic Acid,Methyl Paraben,Propyl Paraben,Creatine,Tetrasodium Edta,Phenoxyethanol,Caprylyl Glycol,Sorbic.
成分:去离子水,甘油,辛酸/葵酸三甘油酯,肉豆蔻酸肉豆蔻酯,乳木果油,硬脂酸甘油酯,泛醇,甜菜碱,聚二甲基硅氧烷,橄榄油,尿囊素,聚山梨醇酯-60,卡波姆,汉生胶,香精,三乙醇胺,生育酚乙酸酯,透明质酸,对羟基苯甲酸甲酯,对羟基苯甲酸丙酯,肌酸,乙二胺四乙酸四钠,苯氧乙醇,辛二醇,山梨酸。
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Ingredients: Water,Glycerin,Caprylic/Capric Triglyceride,Myristyl Myristate,Butyrospermum Parkii Butter,Glyceryl Stearate,Panthenol,Betaine,Dimethicone,Hydrolyzed Collagen,Allantoin,Polysorbate-60,Carbomer,Xa-nthan Gum,Parfum,Triethanolamine,Tocopheryl Acetate,Hyaluronic Acid,Methyl Paraben,Propyl Paraben,Creatine,Tetrasodium Edta,Phenoxyethanol,Caprylyl Glycol,Sorbic.
成分: 去离子水,甘油,辛酸/葵酸三甘油酯,肉豆蔻酸肉豆蔻酯,乳木果油,硬脂酸甘油酯,泛醇,甜菜碱,聚二甲基硅氧烷,水解胶原蛋白,尿囊素,聚山梨醇酯-60,卡波姆,汉生胶,香精,三乙醇胺,生育酚乙酸酯,透明质酸,对羟基苯甲酸甲酯,对羟基苯甲酸丙酯,肌酸,乙二胺四乙酸四钠,苯氧乙醇,辛二醇,山梨酸。
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By utilizing three benezenemulticarboxylate derivatives (H2chdc, H2aip, NaH2sip), we obtain 12 coordination polymers. Especially, compelexes 1 and 2 are based on one-dimensional ···OHInOHIn···chains as building units, while complex 3 is based on double four-ring [In8(μ2-O)4(μ2-H2O)8]16+, complex 4 is based on trinuclear In3(μ3-O)(CO2)6, complexes 11 and 12 are both based on nested bistranded helices.
选择了三类取代苯羧酸配体: 2,5-二羟基-1,4-对苯二甲酸(2,5-H2chdc); 5-氨基间苯二甲酸(5-H2aip); 5-磺酸基间苯二甲酸钠盐(5-NaH2sip)和InCl3反应合成了十二个配位化合物:其中1、2以···OHInOHIn···链为构筑单元, 3以双四元环[In8(μ2-O)4(μ2-H2O)8]16+为构筑单元,4以棱柱状三核铟In3(μ3-O)(CO2)6为构筑单元,而11、12以嵌套的双股螺旋链为构筑单元。
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Examples of metal chelating groups include hydroxides especially aryl or heteroaryl hydroxides such as phenolic hydroxides; amines which may be aliphatic aryl or heteroaryl; mercaptans which may be aliphatic aryl or heteroaryl; carboxylic acids which may be aliphatic aryl or heteroaryl; oximes and ketoximines; acetarylamides; hydroxy silanes and silicones; N-containing heterocycles such as imidazoles benzimidazoles triazoles benzotriazoles thiazoles isothiazoles acid anhydrides and more preferably acid groups (especially carboxylic acid groups phosphoric acid groups polyphosphoric acid groups phosphonic acid groups sulphuric acid groups and sulphonic acid groups).
金属螯合组的例子包括氢氧化物,特别是芳基或如酚醛氢氧化物杂氢氧化物;胺可能是脂肪族,芳基或杂;硫醇可能是脂肪族,芳基或杂,这可能是脂肪族,芳基或羧酸杂;肟和ketoximines; acetarylamides;羟基硅烷和有机硅,含N,如咪唑,苯并咪唑类,三唑类,苯并三氮唑,噻唑类,isothiazoles,酸酐杂环,多最好酸组(特别是羧酸团体,磷酸,团体,多聚酸组,膦酸组,硫酸团体和磺酸组)。
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In this dissertation, preparation of polysubstituted ethene and heterocyclic compounds based on 2-hydroxyalkyl phenyl selenides andα-phenylselenopropionic acid reagents were further investigated as follow: Firstly, O-ethyl-O-vinyl phosphonates were prepared in a one-pot, two-step transformation by Mitsunobu reaction of 2-hydroxyalkyl phenyl selenides with monoethyl esters of phosphonic acid in the presence of diethyl azodicarboxylate and triphenyl phosphine (PPh3) followed by oxidation-eliminatio...
中文摘要:本文主要进一步探索了2-羟基烷基苯基硒醚、α-苯硒基丙酸试剂在制备多取代乙烯和杂环化合物反应中的应用,具体研究内容和结果如下:一、在偶氮二羧酸乙酯和三苯膦(PPh3)存在下,苯基-2-羟基烷基硒醚和O-乙基膦酸单酯发生Mitsunobu反应,无需分离和纯化反应中间体,直接使用30 %的双氧水进行氧化-消除反应,提供了&两步、一锅&合成O-乙基-O-乙烯基膦酸酯的新方法,该方法反应条件温和,操作简便,产物收率良好(76-82 %)。
- 推荐网络例句
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Do you know, i need you to come back
你知道吗,我需要你回来
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Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.
1〕 杨银书,王祥生,李德昌。安徽省首次发现嗜群血蜱。
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Chapter Three: Type classification of DE structure in Sino-Tibetan languages.
第三章汉藏语&的&字结构的类型划分。