步甲

With the in-situ single-stage self-metallization protocol,surface-silvered polyimide film has been prepared using pyromellitic dianhydride/ 4,4\'-oxydianiline-based polyimide as the matrix and (1,1,1-trifluoro-2,4-pentadionato)silveras the silver precursor.

在原位一步自金属化法中，以均苯四甲酸酐/4，4\'-二胺基二苯醚基聚酰亚胺为基体，以三氟乙酰丙酮银作为银的母体制备出了表面金属化的聚酰亚胺银复合薄膜。

The antiarrhythmic drug ibutilide fumarate was synthesized from aniline by methylsulfonylation, Friedel Crafts reaction, condensation, reduction and salification with an overall yield of 44%.

以苯胺为起始原料，经甲磺酰化、傅克反应、缩合、还原和成盐反应等 5步合成了抗心律失常药富马酸伊布利特，总收率 4 4 %。

In the same reactor, telon fast green 5G was synthesized through condensation and sulfonation processes with 1,4,5,8-hydroxyanthraquinone and p-toluidine as main raw materials.

由1，4，5，8—四羟基蒽醌和对甲苯胺为主要原料，在一个反应器内同时完成了缩合和磺化两步单元反应，合成酸性蒽醌绿染料，并对其反应条件对产物收率的影响进行了研究，确定了最佳合成工艺条件(反应时间16 h、反应温度120℃、原料的配比1：2.2)。

In the first part of this thesis, a formal [4+2] cycloaddition of ketenes with N-benzoyldiazenes catalyzed by chiral NHCs was studied, which gave 1,3,4-oxadiazin-6-ones in very high yields and enantioselectivites.

论文的第一部分内容是在手性氮杂环卡宾的催化下，烯酮与N-苯甲酰偶氮化合物的环加成反应，合成各种手性的噁二嗪酮，它们还可以经过简单的两步一锅法制备手性氨基酯。

Next marched four abreast the band of little Weevils, carrying the umbrellas of state, which were morning-glories—some open, some shut.

下一步游行乐队四个跟上的小象甲，携带雨伞的国家，这是今天上午，辉煌，一些开放的，有些关闭。

A process for synthesis of-2-{[4-(3-methoxypropoxy)-3-methyl-pyridin-2-yl]methyl- sulfinyl}-1H-benzimidazole from 2,3-lutidine was studied.

以2，3-二甲基吡啶为起始原料，经过11步反应，不对称合成了质子泵抑制剂的关键中间体：-2-{[4-(3-甲氧基丙氧基)-3-甲基吡啶-2-基]甲基亚硫酰基}-1H-苯并咪唑。

Juventus moved a step closer to Serie A with a 1-0 win at Pescara on Saturday and Secco is obviously delighted with how the campaign is shaping up.

客场1：0击败佩斯卡拉之后，尤文图斯距离意甲更近一步。

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。