用苯酚和钠得到苯酚钠,苯酚钠和2-氯乙醇得到2-苯氧基乙醇,与氯化锌反应得2,3-二氢苯并呋喃,产率50%。
A mixture of phenol, sodium and 2-chloroethanol forms 2-phenoxyethanol, add zinc chloride, the product is 2,3-dihydrobenzofuran, yield 50%.
具有视黄酸衍生物类生物活性的四氢萘、苯并二氢吡喃、二氢苯并噻喃和1,2,3,4-四氢喹啉羧酸的芳基或杂芳基酰胺。
Aryl or heteroaryl amides of tetrahydronaphthalene, chroman, thiochroman and 1,2,3,4-tetrahydroquinoline carboxylic acids having retinoid-like biological activity.
苯并二氢吡喃具有类维生素A的生物活性。
在巴布亚新几内亚部分地区,青蒿醚加苯芴醇和二氢青蒿素加哌喹分别是治疗小儿恶性疟原虫疟疾和间日疟的最具成本效益的治疗方案。
A+L and DHA+PQ are highly cost-effective regimens for the treatment of paediatric P. falciparum and P. vivax malaria, respectively, in parts of Papua New Guinea.
例如碳酸钠和邻苯二酸氢钾,分别用来标定酸和碱溶液。
Examples are sodium carbonate and potassium acid phthalate which are used to standardize acid and base solutions.
乙酰苯胺、己二酸和邻苯二甲酸氢钾可以使PV C结晶度增大。
Acetanilide and hexane diacid, potassium hydrogen phthalate could improve PVC crystallinity.
本文用自由基捕捉剂与esr相结合的方法系统研究了各种取代苯胺与二苯酮光化夺氢反应中的活泼自由基。
Active free radicals in the photochemical hydrogen abstraction reaction between benzophenone and aromatic amines have been studied systematically by combination of spin trapping reagents and ESR.
本文从邻苯二甲酸氢钾单晶的微观结构特性,讨论了晶面上特征层状包裹形成的结构影响因素。
The formation of characteristic layered inclusions in the single crystal of potassium acid phthalate (KAP) is discussed in view of the effect of its microscopic structure.
邻苯二甲酸氢铷(RAP)是一种有机极性离。产型晶体。本文通过实验研究了它在非极性轴方向的介电、DC电导、P -e曲线、光透过率等有关性能。
Rubidium acid phthalate (RAP) is an ionic organic polar crys-tal. In this paper, the experimental studies of its dielectric property, DCconductivity, P-E curve and transmission are reported.
氨磺酰-取代的苯并二氢吡喃,其制法,作为药物或诊断剂的应用及含有它的药物。
Sulfamine-substituted benzodihydopyran, preparation method, use as medicine or diagnostic reagent and medicine containing same.
邻苯二甲酸氢铷单晶是一种有机极性离子型晶体。
Rubidium acid phthalate (EAP) is an ionic organic polar crystal.
本文采用气相色谱法,用HP-5毛细管柱,以邻苯二甲酸二异丁酯为内标物,用氢火焰离子化检测器对甲氧苄氟菊酯进行定性定量分析。
A method for the determination of metofluthrin TC by GC with HP-5 capillary column, diisobutyl phthalate as internal standard and FID detector was described.
二氢-2-甲基-4-苯基-1,5-苯并硫氮杂卓与重氮乙酸乙酯反应,得到非预期的分子内重排的开环产物。
From the reaction of 2,3 dihydro 2 methyl 4 phenyl 1,5 benzothiazepines with diazozcetic ester an unexpected ring open product of the intramolecular rearrangement was obtained.
氢 化邻苯二酸酐加入到邻苯二酸酐中,可使其放热反应减慢。
Exothermic reaction can be reduced by adding hexahydrophthalic anhydride to the phthalic anhydride.
毛细管柱,以邻苯二甲酸二丁酯为内标物,以氢火焰离子化检测器对杀虫剂氯烯炔菊酯原药进行定性定量分析。
A gas chromatographic method for quantitative and qualitative analysis of chlorempenthrin using a HP-5 capillary column and dibutyl phthalate as internal standard was described.
本发明涉及一种用于制备链烯基化的羟化芳族化合物、苯并二氢吡喃化合物和其酰化衍生物的方法。
The present invention relates to a process for the manufacture of alkenylated hydroxylated aromatic compounds, of chroman compounds and of their acylated derivatives.
以邻甲氧基苯酚与对氯*为原料,经四步反应合成6-(2-甲氧苯氧基)-1,4-二氢-4-氧代-3-喹啉羧酸乙酯。经抗鸡球虫实验证明具有抗球虫效果。
The compound 6-(2-methoxy phenoxy)-1, 4-dihydrogen-4-oxo-3-ethyl quinoline carboxylate is prepared with o-methoxyphenol and p-chloronitrobenzene as materials and through four-step reaction.
以邻甲氧基苯酚与对氯*为原料,经四步反应合成6-(2-甲氧苯氧基)-1,4-二氢-4-氧代-3-喹啉羧酸乙酯。经抗鸡球虫实验证明具有抗球虫效果。
The compound 6-(2-methoxy phenoxy)-1, 4-dihydrogen-4-oxo-3-ethyl quinoline carboxylate is prepared with o-methoxyphenol and p-chloronitrobenzene as materials and through four-step reaction.
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