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二羟基苯

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Results: An acetophenone derivatives was isolated and identified as 2,4-dihydroxy-f-methoxy-3-methylacetophenone with a concentration〉98oA.

结果:鉴定该化合物为2,4-二羟基-6-甲氧基-3-甲基-1-苯乙酮,纯度〉98%,用于狼毒制剂结核灵片的质量控制。

Anisaldehyde was synthesized from p-hydroxybenzaldehyde with dimethyl carbonate by microwave irradiation under phase transfer catalyst tetrabutylammonium bromide, The effect of power, time, solvent and catalyst of reaction on yield were researched.

以四丁基溴化铵为相转移催化剂,采用对羟基苯甲醛和碳酸二甲酯为原料,微波辐射下合成大茴香醛。考察了反应溶剂、功率、时间和催化剂对反应产率的影响。

Methoxycarbonyl-4-(4-methoxyphenyl )-6-methyl-3, 4-dihydropyrimidine-2(1H)-one was synthesized from anisaldehyde, methyl acetoactate and urea in presence of HF-1O1 strong acidic ion-exchange membrane.

在HF-101强酸性离子交换膜的存在下,由对羟基苯甲醛、乙酰乙酸甲酯与脲一步合成了5-甲氧羰基-4-(4-甲氧苯基)-6-甲基-3,4-二氢嘧啶-2(1H)-酮。

Objective:The present study investigated the inhibitory effects of Chinese herb component sinapine on activity of acetylcholinesterasein cerebral homogenate and blood serum of rats.

中文摘要:目的:考察中药单体芥子碱(3,5-二甲基,4-羟基苯丙烯酰胆碱,sinapine)对大鼠血清和大鼠大脑匀浆乙酰胆碱酯酶(acetylcholinesterase,AChE)的体外抑制作用。

The epoxidised cashew nut shell oil acrylate oligomer for UV curing materials was synthe- sized using epoxidised cashew nut shell oil and acrylic acid as main raw materials,N,N-dimethyl- benzylamine as catalyst and p-hydroxyanisole as inhibitor.

以N,N-二甲基苄胺作催化剂、对羟基苯甲醚作阻聚剂,环氧化腰果壳油和丙烯酸为主要原料合成了一种新型的紫外光固化预聚物——环氧化腰果壳油丙烯酸酯。

Factory engaged in medicine, veterinary medicine, agricultural chemicals and raw materials development and production of intermediates, the series of export products: 2,2 - bipyridine, 2,6 - dihydroxy toluene, propiconazole intermediates, phenol line P , Fluometuron, fluorine pyronaridine oxadiazon, oxadiazon pyronaridine fluorine intermediates, Robenidine hydrochloride and so on.

本厂从事医药、兽药、农用化学品原料药及中间体的研制与生产,系列出口产品:2,2-联吡啶,2,6-二羟基甲苯,丙环唑中间体,酚线磷,伏草隆,氟咯草酮,氟咯草酮中间体,盐酸氯苯胍等等。

Schiff base derived from p-hydroxybenzaldehyde and p-aminobenzoic acid was prepared by solid-state reaction at supersonic speed airflow and low-heating. Lophophora shape Cu complexes was prepared from the Schiff base and copper acetate and through adding sodium dodecyl sulfate. The structural composition of complexes was confirmed by FTIR and elemental analysis.

利用超音速气流低热固相法合成了对羟基苯甲醛缩对氨基苯甲酸Schiff碱配体,再以该配体和乙酸铜为原料,通过添加十二烷基硫酸钠的方式制备出了晶形规整的仙人球型配合物,利用元素分析和红外等现代测试手段确定了配合物的结构组成。

In the present paper,the use of 8-hydroxyquinolinecomplexs in precipitate flotation to separate and preconcentrate Cu and Mn,using SDBS as collector,followed by AAS spectrophotometric determination is proposed.

提出了以8-羟基喹啉为沉淀剂,十二烷基苯磺酸钠为浮选剂,沉淀浮选预分离富集与火焰原子吸收光谱法联用测定痕量Cu和Mn的新方法。

Results Six compounds were isolated and identified as:5α,8α-epidioxy-(22E,24R)-ergosta-6,22-dien-3β-ol,scopoletin,isofraxidin,p-hydroxy benzaldehyde,3,4,5-trimethoxy benzoic acid,protocatechuic acid ethyl ester...

结果得到6个化合物,分别鉴定为:5α,8α表二氧(22E,24R)麦角甾6,22二烯3β醇、东莨菪素、异秦皮啶、对羟基苯甲醛、3,4,5三甲氧基苯甲酸、原儿茶酸乙酯。结论化合物Ⅰ~Ⅵ均为首次从该属植物中分离得到。

An organophosphorus flame retardant,10-(2,5-dihydroxyphenyl)-9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide was synthesized from phosphorus trichloride,o-phenylphenol and p-benzoquinone through three-step process.

以三氯化磷、邻苯基苯酚和对苯醌为主要原料,通过三步反应合成了含磷阻燃剂10-(2,5-二羟基苯基)-9,10-二氢-9-氧杂-10-膦菲-10-氧化物。

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