醇基

The course of thermal reaction for iso-butyl mercaptan, di-n-butyl sulfide and di-n-butyl disulfide is free radical mechanism.

对于异丁硫醇、丁硫醚、丁基二硫化物的热反应，其热转化的途径是自由基机理。

A preparation method of nickel oxide-base cathode of fused carbonate fuel cell is to select alkali earth metal oxide, transition metal oxide and rare-earth metal oxide, mix with carbonyl nickel powder in the proportion of 0.01-15.00 mol%, add assistant and mix even into a slurry; after the slurry is formed into a biscuit by doctor-blade casting, sinter it into a multi-porous nickel plate; dissolve lithium nitrate and cobaltous nitrate with mole ratio of Li:Co-1:1 and citric acid or PVA in the distilled water to make a solution with Li of 0.00-0.5 mol/L; immerse the multi-porous nickel plate or nickel oxide plate in the solution, keep for 10-60 minutes under vacuum below 200 millibar, then dry in an oven at 75 degrees centigrade further transfer to a crucible electric furnace preheated 650 degrees centigrade for keeping the temp.

要約 熔融碳酸盐燃料电池氧化镍基阴极的制备方法属于燃料电池领域。选取碱土金属氧化物、过渡金属氧化物和稀土金属氧化物，按0.01－15.00mol％的比例与羰基镍粉混合，加入助剂，混合均匀成浆料；混合浆料流延成型为素坯后烧结为多孔金属镍板；将摩尔比为Li∶Co＝1∶1的硝酸锂和硝酸钴以及柠檬酸或聚乙烯醇溶于蒸馏水中，制成为0.005－0.5mol/L的溶液；将多孔金属镍板或氧化镍板浸入溶液中，在真空度低于200毫巴下保持10－60分钟；置于75℃的烘箱中烘干，转移至预热到650℃坩埚电炉中保温1－10小时；将此过程重复一次或多次即可。

ABSTRACT Immobilized penicillin acylase (from E.coli) was used to catalyze 7 phenylacetamido 3 E propenyl cephalosporanic acid hydrolyzation into 7 amino 3 E propenyl cephalosporanic acid. Then, trans APRA was acylated with hydroxyethyl ester of 4 hydroxy D phenylglycine to obtain trans cefprozil.

以7 苯乙酰氨基 3 E 丙烯基 3 头孢菌素 4 羧酸为原料，在青霉素酰化酶作用下，首先酶法水解得到3 E 丙烯基 3 头孢菌素 4 羧酸，过滤固相酶，滤液调pH分离得到反式APRA固体；在青霉素酰化酶作用下，反式APRA再与对羟基苯甘氨酸乙二醇酯缩合，得到反式头孢丙烯；酶法合成所得的产品与进口反式头孢丙烯对照品一致。

The optimal reaction conditions were as follows: the molar ratio of propanol to acid was 1:1, the mass ratio of the catalyst used to p-nitrobenzoate was 6%.

合成硝基卡因的最佳工艺条件为：醇酸比为1：1，催化剂的用量为对硝基苯甲酸的6%，在回流温度下反应14h，产率达到79.5%。

Catalysts in three synthesis routes,the hydroxylation of 4-tert-butyl-phenol,the alkylation of pyrocatechol by tert-butyl alcohol and the alkylation of pyrocatechol by isobutene,were discussed in detail in terms of reaction conditions,catalysts,temperature,reaction time etc.

论述了对叔丁基苯酚羟基化法、邻苯二酚与叔丁醇烷基化法和邻苯二酚与异丁烯烷基化法生产对叔丁基邻苯二酚的合成路线的催化剂。

This gene contained 1 530 bp and encoded 510 amino acids, named IbMIPS-1. Sequence analysis indicated that IbMIPS-1 had high homology with Ricinus communis MIPS gene, Nicotiana tabacum MIPS gene, Sesamum indicum MIPS gene and Glycine max MIPS gene.

该基因由1530个碱基组成，编码510个氨基酸，与蓖麻、烟草、芝麻、大豆肌醇－1-磷酸合酶的氨基酸序列比对表明，其同源性很高。

Water, Sweet almond oil, Cetearyl wheat bran glycosides and cetearyl alcohol, Hydrogenated jojoba oil, Zinc oxide, Rosehip oil, Evening primrose oil, Macadamia nut oil, Calendula oil, Honey, Camellia oil, Rose geranium oil, Frankincense oil, Lavender oil, Grapefruit seed extract, Vitamin E,marshmallow root,ginkgo bilboa, Phenoxyethanol, Iodopropynyl butylcarbonate.

水，甜杏油，麦秸鲸蜡硬脂基葡糖苷和十六烷基醇，氢化霍霍巴油，氧化锌，野玫瑰果籽油，月见草油，澳洲坚果油，金盏菊油，蜂蜜，山茶油，老鹳草玫瑰油，乳香油，薰衣草油，药属葵根，百果树，苯氧乙醇，碘代丙炔基氨基甲酸丁

Compositions: deionized water, roseleaf, rose essential oil, rose extract, coco-glucoside, CAB-35, lauryl alcohol polyether ammonium sulfate, DMDM glycolylurea

成份： 去离子水、玫瑰花瓣、玫瑰精油、玫瑰花提取物，椰油基葡糖苷，椰油酰胺丙基甜菜碱，月桂醇聚醚硫酸铵， DMDM 乙内酰脲。

He minim acidity in TS-1 can catalyze the solvolysis reaction of PO to propylene glycol, 1-methoxy-2-propanol and 2-methoxy-1-propanol.

S-1中含有的微量酸中心能够导致环氧丙烷与溶剂反应生成丙二醇、1-甲氧基-2-丙醇和2-甲氧基-1-丙醇。

During these years (1997-2000) in the research area of annonaceous acetogenins 5 natural products and a number of chiral-pure analogs of annonaceous acetogenins have been synthesized using sugars as the starting materials. Their high activity and selectivity against cell line of colon tumor and a relationship between activity and configuration have been found too. In the respect of inhibitor of sialidase two new methodologies for the synthesis of chiral-pure 3-deoxy-ulosonic acid using hetero-Diels-Alder reaction or asymmetric propargylation as the key reaction were developed. On the topic of anti-leukemia marine natural product clavulactone a synthetic method based on the free radical cyclization and starting from sugar has been developed. In other title of PKC inhibited agent sphingosine a new synthetic route with SN2' as the key reaction has also been disclosed.

项目期间（1997-2000）在番荔枝内酯方面从糖出发合成了五个天然产物和一批手性纯的类似物，它们对肠癌细胞有很高的活性和选择性，并与构型有关；在唾液酸酶抑制剂方面发展了二类全新手性纯高碳糖的合成方法－杂原子D－A反应或丙炔基不对称加成为关键的反应；抗白血病海洋天然产物群柱虫内酯方面研究了由糖出发和自由基环化反应的合成方法；对PKC 起抑制作用的鞘氨醇方面也开创了新的合成途径－由糖出发并以SN2'反应为关键反应。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。