硅烷

Methods:Determination method for diazepam and vitamin B1 were changed from coefficient rate and silicotungstic acid precipitation to HPLC and UV respectively.

地西泮由系数倍率法改为HPLC法；谷维素仍用UV法，溶剂由正庚烷改为硫酸乙醇；维生素B1由硅钨酸沉淀法改为UV法。

Using silicotungstic acid as catalyst with the catalyst supported on active carbon,2-methyl-2-ethyl-acetic-1,3-oxathiolane(targeted compound I,an aroma compound with apple flavor )was synthesized by the reaction of ethyl aceto-acetate and 2-mercapto-ethanol.

以活性炭固载硅钨酸作为催化剂，用乙酰乙酸乙酯与巯基乙醇缩和合成了具有浓郁苹果香气的香料化合物2-甲基-2-乙酸乙酯基-1，3-氧硫杂环戊烷。

Keywords: Enantioselective catalysis; phosphorus reagents; silylcyanation; borane reduction

中文关键词：对映选择催化；磷试剂；硅氰化；硼烷还原

A new monomer,4-hexanoxyl-4′-undecylene-[10]-acyloxyazobenzene was synthesized using the main materials:phenol,underlenic acid,1-bromo- n -hexane, p -nitrophenol,thionyl chloride,by the substitution,reduction,couping and diazotization methods.A new polymer was prepared by hydrosilation reaction of poly (methylhy-drosiloxane) with the monomer.

以苯酚、十一烯酸、正溴己烷、对硝基苯酚和二氯亚砜为主要原料，通过取代、还原、重氮化和偶合等反应，合成了一种新的液晶单体 4-己氧基-4′-十一烯-[10]-酰氧基偶氮苯，并与聚通过硅氢加成生成一种新的高分子液晶。

The invention provides a nanometer catalyst for liquid phase oxidation process of cyclohexane, which is characterized in that a silica molecular sieve SBA-15 with meso pore canal is taken as a carrier; one or a plurality of transition metals is/are taken as active component, which is highly dispersed in the carrier, with lower content ranging from 1 percent to 3.5 percent of mass.

一种用于环己烷液相氧化的纳米催化剂，其特征在于：采用具有介孔孔道的全硅分子筛SBA-15为载体，一种或数种过渡金属氧化物为活性组分，活性组分在载体上高度分散，含量较低，范围为1％-3.5％质量。

What would he tell Judith and the children?

他将怎样告诉朱迪丝和孩子们呢？

I this is at that time, the opinion with peacockish true girl is full of in a heart.

这就是当时的我，一个心中布满虚荣的女孩子真实的想法。