苯乙醇酸

In this paper, chiral molybdenum or tungsten 2'-pyridinyl alcoholate complex catalyzed asymmetric epoxidation of cis-1-propenylphosphonic acid in H2O was reported.

目前磷霉素的生产是通过以Na2WO4为催化剂、在乙醇中以30%的H2O2将顺丙烯膦酸环氧化得到消旋产物，再利用α-苯乙胺进行拆分而得到[2，3]。

Resorcin biodegradation was studied by acclimated anaerobic sludge with sucrose,glucose,butyrate and ethanol as co-metabolism substrates in ASBR reactor.

分别用蔗糖、葡萄糖、丁酸盐和乙醇作为驯化好的厌氧污泥的共代谢基质，在厌氧序批式反应器中对间苯二酚的降解进行研究。

Project Background and Conditions: The company started research new chemical products in 1998. After two years of efforts, a series of pharmaceutical intermediate sulfathiazole leave instructions, including : 3- methyl sulfathiazole leave instructions, 2- sulfathiazole leave instructions ethanoic acid, 2- acetyl sulfathiazole leave instructions, 2-thiofuran amino ethane ,2-thiofuran acetic, 3,4,5- tighter nitrobenzene have been successfully developed. 2-thiofuran amino ethane are the precursors raw materials of series antibiotic analgesic.

二、项目建设背景及条件：1998年公司开始研究开发高新精细化工产品，经过两年的努力，已成功研制出噻吩系列医药中间体，包括：3-甲基噻吩、2-噻吩乙酸、2-乙酰噻吩、2-噻吩乙胺、2-噻吩乙醇、3，4，5-三氯硝基苯等。2-噻吩乙胺系列噻吩产品使用于血小板及血栓有关的心脏血管病及消炎镇痛等如氯吡格雷、兴孢噻吩钠、兴孢西丁、噻吩洛酸等十几种新药的前体原料，是国家政策鼓励发展和有自主知识产权的项目。

Purified water, Vegetable glycerine, Avocado oil, Cetearyl wheat straw glycosides and cetearyl alcohol, Vegetable glycoerol stearate, Evening primrose oil, Rosehip oil, Calendula oil, Vitamin E, Vitamin A palmitate, Green tea leaf extract, Ginkgo biloba extract, Grapefruit seed extract, 100% natural fragrance (essential oil blend of orange blossom, ylang ylang, rose, jasmine, tonka bean), phenoxyethnol, Iodopropynyl butylcarbamate.

纯水， 蔬菜甘油，鳄梨油，麦秸鲸蜡硬脂基葡糖苷和十六烷基醇，蔬菜银杏硬脂酸，月见草油，野玫瑰果籽油，金盏菊油，维生素E ，维生素A棕榈酸酯，绿茶叶提取物，银杏叶提取物，葡萄柚籽提取物， 100 ％天然香料（精油混合橘子的花，依兰依兰，玫瑰，茉莉花，零陵香豆），苯氧乙醇，碘代丙炔基氨基甲酸丁

In the presence of ethanol- HCl solution, arylamine-HCl and w=37% aqueous formaldehyde solution or the condensation product of arylamine and formaldehyde are directly reacted with ethyl 3-oxo-2-phenylmethylenebutyrate to form l-aryl-2-phenyl-3-carbethoxy-4-piperidone.

2－苯亚甲基－3－丁酮酸乙酯与芳香胺和w＝37％甲醛水溶液或芳胺和甲醛的缩合物在氯化氢－无水乙醇存在下可直接发生的Mannich反应，得到1－对位取代芳基－2－苯基－3－羰乙氧基－哌啶－4－酮。

Sixteen compounds were separated from 80% ethanol extract of Plant A, they were:-lariciresinol,-isolariciresinol,-isolariciresinol 9-O-β-D-glucopyranoside, tanegoside B, apiginin, apigenin 7-O-β-D-glucoside, apigenin 7-O-β-neospheroside, quercetin 3-O-β-D-glucopyranoside, 1, 7-dihydroxy-3, 4-dimethoxyxanthone, 3-O- [α-L-rhamnopyranosyl (1-4 ] -β-D-glucopyranoside-(25S)-5β-spirostan-3β-ol , 3β-O-D-glucopyranoside quinovic acid, mangiferin , 3'-p-hydroxybenzoyl-mangiferin, physcion, benzenyl methanol β-D-glucopyranoside and Vanillic acid.

结果： 1。从植物A的80％乙醇提取物中共分离得到16个化合物，分别为：-落叶松脂醇、-异落叶松脂醇、异落叶松脂醇9-O-β-D-吡喃葡萄糖苷、tanegoside B、芹菜素、芹菜素7-O-β-葡萄糖苷、芹菜素7-O-β-新橙皮糖苷、槲皮素3-O-β-D-吡喃葡萄糖苷、1，7-二羟基-3，4-二甲氧基-口山酮、菝葜皂苷元-3-O-[α-L-吡喃鼠李糖基（1-4）]-β-D-吡喃葡萄糖苷、喹诺酸3β-O-D-葡萄糖苷、知母宁、3′-对羟基苯甲酸-知母宁、大黄素甲醚、苯甲醇-β-D-吡喃葡萄糖苷、香草酸。

Phenoxyethanol,Caprylyl Glycol,Sorbic.

胺四乙酸四钠，香精，苯氧乙醇，辛二醇，山梨酸。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。