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benzaldehyde n.【化學】苯甲醛。

benzedrine

High gade dye - acid brilliant blue 6b , dye - intermediate - 2 , 4 - disulfonic benzaldeyde , 4 - chloro - 2 - amino phenol - 6 - sulfonec acid , 0 - chloro - p - nitroaniline , benzaldehyde - 0 - sodium sulphonate etc obtained prizes from state and province , its qualit are almost equal to same kinds of products made in sandoz co . of swiss , bayer and hoechst co . of germany , the new product - dimethyltin - bis iso - octhl mercaptoacetate and methyl - tri iso - octyl mercaptoacetate plastic stabilizer was developed in 1997 , it has filled in the gaps in the fields of scince and technology of domestic , it passed the shandong science committee of technology appraise , the quality indexare equal or exceed the same kinds of products made in u . s . a , another new product feeding additive - d - pantothenic acid calcium salt was developed in 1996 , its quality are equal to the same kinds of product made in advanced countries , annual outputs are more than 100mt 高檔染料酸性艷藍6b染料中間體2 , 4 -二磺酸笨甲醛茜素4 -氯- 2 -氨基苯酚- 6 -磺酸鄰氯對硝基苯胺脫氫硫代對甲苯胺雙磺酸等均獲國家級優秀新產品獎和省科技進步二等獎,產品質量分別達到瑞士山道士西德拜爾赫斯特等公司同類產品水平公司1997年開發的塑料穩定劑-甲基錫產品為又一填補國內空白的高新技術產品,產品當年通過省科委技術鑒定,各項質量指標分別達到或超過美國同類產品水平。

Fat , protein , aminophenol , trace elements in amygdalus ledebouriana schleche were determinated by chp ( 2005 edition ) and national standard methods , natural benzaldehyde and amygdalin were determinated by uv absorb method and hplc method respectively 分別用索氏抽提法、微量凱氏定氮法測定野巴旦杏中脂肪、蛋白質,用氨基酸分析儀測定多種氨基酸含量,原子吸收法測定多種元素,紫外法及反相高效液相法測定天然苯甲醛及苦杏仁苷。

Three electrosynthesis methods of benzaldehyde and its derivatives are introduced in this paper , i . e . , anodic oxidation of propenyl , hydroxyl and methyl of benzene rings , cathodic reduction of carboxyl of benzene rings , anodic substitution of methyl of benzene rings 摘要本文介紹了苯甲醛系列化合物的三種電合成方法:苯環上丙烯基、羥基和甲基的陽極氧化,苯環上羧基的陰極還原,苯環上甲基的陽極取代。

The novel title compound was synthesized with benzaldehyde , isobutyraldehyde , phosphorus trichloride as raw materials . the total yield was 40 . 8 % . the structure was confirmed by 1h nmr , 31p nmr and elemental analysis 摘要以苯甲醛、異丁醛、三氯化磷為原料合成了新型的1 , 3 , 2 -氧磷雜環類化合物2 -苯羥甲基5 , 5 -二甲基4 -苯基2 -氧代1 , 3 , 2 -二氧磷雜環己烷,總收率為40 . 8 % ,并對其進行了nmr研究和結構表征。

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,用氯化亞砜或五氯化磷將其轉化為相應的酰氯,后者在室溫與鄰胺基苯甲醛縮合,通入氨氣回流反應得到3 - ( 1 -亞胺基氟烷基) 1h -喹啉2 -酮類化合物,產率中等。

It was found that when the oxidation reaction was performed in toluene solvent , benzyl alcohol was oxidized to benzaldehyde without any overoxidation to benzoic acid ; on the contrary , in acetonitrile solvent , both benzaldehyde and benzoic acid were formed 發現在甲苯溶劑中進行氧化反應時,苯甲醇被氧化成苯甲醛而不會被深度氧化為苯甲酸;而在乙腈溶劑中,苯甲醛和苯甲酸均有生成。

Yin , yue - yan ; zhao gang * ; yang , gao - sheng ; yin , wei - xing , “ preparation of 6 , 6 ' - bisperfluoroalkylated binols and their application in asymmetric alkylation of benzaldehyde ” , chinese journal of chemistry , 2002 , 20 , 803 ? 808 楊高升,盛恩宏,程林,周雙六,孫益民,王紹武* , “含茂基稀土金屬有機絡合物催化劑在有機合成中的應用” ,中國稀土學報, 2002 , 20 , 97 ? 106

Research progress in benzoic acid and ester hydrogenation to benzaldehyde were reviewed . the new process of benzaldehyde preparation were suggested for the shortage of present research progress 摘要綜述了國內外苯甲酸及其酯催化加氫制備苯甲醛技術的研究進展,并針對當前研究狀況,提出了改進辦法以及新型苯甲醛生產綜合途徑。

The yield of benzaldehyde obtained by using the modified anode containing immobilized hydroquinone was better / worse than that obtained with a pt anode without / with hydroquinone in solution , repectively 由苯二酚固定于白金之電極所得苯甲醛之產率分別白金電極無有苯二酚存在于溶液中之產率為高低。

Producer of pesticide and pharmaceutical intermediates . products include chlorinated and fluorinated derivatives of benzoic acid , benzonitrile , benzaldehyde , nitrobenzene , and aniline -生產氯芐苯甲醛苯乙酸芐醇芐胺等一系列醫藥中間體農藥中間體和染料中間體。

The promotion action of ionic liquid as an accelerant in synthesizing benzaldehyde ethanediol acetal and benzaldehyde propanediol acetal was studied 摘要以離子液體為促進劑,強酸性聚苯乙烯732催化了苯甲醛與兩種二元醉的縮醛反應。

Manufacturer of chlorinated derivatives of toluene , benzyl chloride , and benzaldehyde . also produces a range of plastic additives . located in china -主要生產鹽酸多塞平氯普噻噸和鹽酸酚芐明等多種原料藥及十多個醫藥中間體。

Manufacturer of aromatic intermediates in china . products include derivatives of benzaldehyde , acetophenone , phenols and cresols , and meloxicam -生產氟系列醫藥農藥中間體,主要產品有對氟苯胺對氟苯酚鄰氟苯胺鄰氟苯酚。

The phenytoin sodium is prepared by means of condensation , oxidation and ringclosure condensation from benzaldehyde 以苯甲醛為原料,通過縮合、氧化、關環縮合等多步合成苯妥英鈉

Synthesis of benzaldehyde dihexyl mercaptal catalyzed by phosphotungstic acid immobilized on ion exchange resin 樹脂固載磷鎢酸催化合成苯甲醛正己硫醇縮醛

Synthesis of benzaldehyde ethylene glycol acetal catalyzed by perfluorosulfonic acid resin silica composite 2負載全氟磺酸樹脂催化合成苯甲醛乙二醇縮醛

The efficiency of h2o2 utilization is 100 % and the selectivity to benzaldehyde is 100 % 在體系中,催化劑以均相的方式催化反應,以多相的方式分離回收。

Direct oxidation of toluene is a simple and cheap production technology of benzaldehyde 摘要甲苯直接氧化制備苯甲醛是一條最為簡單而經濟的生產工藝。

Method for the determination of benzaldehyde residues in honey - hplc - fluorescence detection method 蜂蜜中苯甲醛殘留量的測定方法液相色譜-熒光檢測法