硫酰基
- 与 硫酰基 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Acetyl CoA A compound made up of acetyl and coenzyme A linked by a sulfur bridge.
乙酰辅酶 A :由乙酰基和辅酶 A 通过硫键连接的一种化合物。
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Methods 4-Hydroxy- benzonitrile was treated with sodium hydrogen sulfide and anhydrous magnesium chloride in dimethyl formamide to give thioamide, which was then directly cyclized with ethyl 2-chloroacetoacetate without separation to give ethyl 2-(4-hydroxyphenyl)-4-methylthiazole-5-carboxylate(2) in one-pot; then 2 was formylated with Duff reaction adopting hexamethylenetetramine in trifluoroacetic acid to give ethyl 2-(3-formyl-4-hydroxyphenyl)-4-methylthiazole-5-carboxylate(3); finally, the target compound was obtained by the treatment of 3 with hydroxylamine hydrochloride and sodium formate in formic acid.
采用"一勺烩"方法,以4-羟基苯甲腈为起始原料,首先与硫氢化钠和无水氯化镁在N,N-二甲基甲酰胺中反应,所得中间体不经分离,直接加入2-氯乙酰乙酸乙酯进行环合反应,得到2-(4-羟基)苯基-4-甲基-5-噻唑甲酸乙酯(2);然后通过六亚甲基四胺/三氟乙酸进行Duff反应,得到2-(3-甲酰基-4-羟基)苯基-4-甲基-5-噻唑甲酸乙酯(3);再经盐酸羟胺/甲酸/甲酸钠体系脱水得到目标化合物。
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Leaves of field wheat in florescence were sprayed and the cutting leaves of hollyhock were soaked at base with aqueous solutions of N-(1-Naphthaleneacetyl)-N′-(4-Aminopyryl) Thiourea of 10, 20, 50 mg .
以新合成的N-(1-萘乙酰基)-N′-(4-氨替吡啉基)硫脲配制成不同浓度(10、20、50 mg 。 L-1)的水溶液,对大田扬花期小麦进行叶面喷洒和蜀葵叶片扦插基部的浸泡处理,并在分别含有0.1 mg 。
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No reactions were observed for reactions of benzodiazepines with ketene atroom temperature; but the reaction of benzothiazepines with monochloroketene gave[2+2] cycloadducts .
发现在室温下苯甲酰基苯并二氮杂卓与烯酮没有反应,而苯并硫氮杂卓与一氯烯酮形成了正常的β-内酰胺环产物。
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In addition a series compounds of thiazole glycosides (17a~17f) were synthesized through 1-benzoyl-3-aryl-thioureas by phase-transfer catalysis method under mild condition.
另外,本文以1-苯甲酰基-3-芳基硫脲为原料通过相转移合成法合成了一系列噻唑类糖苷的衍生物(17a~17f)。
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New sulfonyloxadiazolones have the formula, in which A stands for hydrogen, sulphur,-SO-,-SO2- or a group, in which R stands for hydrogen or alkyl; R stands for optionally substituted cycloalkyl, cycloalkenyl or aryl; and R stands for optionally substituted alkyl, alkenyl, dialkylamino or aryl.
本发明涉及式新的磺酰基__二唑酮,其中,A代表氧、硫、-SO-、-SO 2 -或基团,其中R 3 代表氢或烷基;R 1 代表任选被取代的环烷基,任选被取代的环烯基或任选被取代的芳基;和R 2 代表任选被取代的烷基,链烯基,二烷基氨基或芳基。
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The invention relates to a mixed additive used in lithium secondary battery electrolyte, which is characterized in that: its components comprises that biphenyl at 0.5-95.4%, phenylcyclohexyl at 1.1-93.8%, vinylene carbonate at 0.4-93.2%, tertiary carbon alkyl benzene at 0.5-96.5%; and ethenyl sulfonyl benzene at
本发明公开了一种锂离子二次电池电解液用混合添加剂,其特征在于:组分与重量%分别是:联苯类0.5%~95.4%;环己基苯类1.1%~93.8%;碳酸亚乙烯酯0.4%~93.2%;叔碳烷基苯0.5%~96.5%;乙烯基硫酰苯0.5%~95.8%。
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Benzoylated phenyl a - and B - 2 - thio - D - fructofuranosides were synthesized and coupled with protected sucrose acceptor to synthesize a - D - fructofuranoside - linkage stereospecifically by employing NIS/AgOTf as catalysts.
在果糖的合成研究中,合成了四苯甲酰基苯基果糖硫苷,并首次将其用作糖苷化反应的给体,在NIS/AgOTf的促进之下,与乙酰化保护的蔗糖受体反应,从而以高产率立体专一地合成了α构型的呋喃果糖苷。
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Methods 4-Hydroxy- benzonitrile was treated with sodium hydrogen sulfide and anhydrous magnesium chloride in dimethyl formamide to give thioamide, which was then directly cyclized with ethyl 2-chloroacetoacetate without separation to give ethyl 2-(4-hydroxyphenyl)-4-methylthiazole-5-carboxylate(2) in one-pot; then 2 was formylated with Duff reaction adopting hexamethylenetetramine in trifluoroacetic acid to give ethyl 2-(3-formyl-4-hydroxyphenyl)-4-methylthiazole-5-carboxylate(3); finally, the target compound was obtained by the treatment of 3 with hydroxylamine hydrochloride and sodium formate in formic acid.
采用&一勺烩&方法,以4-羟基苯甲腈为起始原料,首先与硫氢化钠和无水氯化镁在N,N-二甲基甲酰胺中反应,所得中间体不经分离,直接加入2-氯乙酰乙酸乙酯进行环合反应,得到2-(4-羟基)苯基-4-甲基-5-噻唑甲酸乙酯(2);然后通过六亚甲基四胺/三氟乙酸进行Duff反应,得到2-(3-甲酰基-4-羟基)苯基-4-甲基-5-噻唑甲酸乙酯(3);再经盐酸羟胺/甲酸/甲酸钠体系脱水得到目标化合物。
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We studied the infection ofthe different reactant ratios to the degree of nitration when the polystyrere was nitrified. Thena series PS-NH_2 With different concentrations of amidocyanogen were gained by reducingPS-NO_2. At last the high active acryloylthiourea were grafted on the amidocyamogens.
在聚苯乙烯的硝化过程中,研究了不同的反应物配比对硝化度的影响,并对不同硝化度的硝基聚苯乙烯进行还原反应,得到了胺基含量不同的系列胺基聚苯乙烯,最后利用聚苯乙烯上的胺基和高活性的丙烯酰基异硫氰酸酯进行加成,合成AGPS。
- 推荐网络例句
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They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.
他们没有侵略性,但我大喊,并在他们的方向扔石头让他们过的线索,远离我,以防万一。
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In slot 2 in your bag put wrapping paper, quantity does not matter in this case.
在你的书包里槽2把包装纸、数量无关紧要。
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Store this product in a sealed, lightproof, dry and cool place.
密封,遮光,置阴凉干燥处。