二苯酰

Synthesis and liquid crystalline behavior of three recently reported mesogenic block-molecules, namely polyhydroxy 1-benzoylaminopropane-2,3-diols I、star-shaped pentaerythritol tetrabenzoates II and calamitic bolaamphiphiles with lateral chains III which are constituted of anisometric block, amphiphilic block and alkyl or perfluorinated chains with different topologies are reviewed in this article.

本文对近来报道的三类嵌段液晶分子：多羟基1－苯甲酰胺－2，3－丙二醇两亲性分子I，星状季戊四醇苯甲酸酯II及带侧链的波拉化合物III的合成及自组装行为作了综述。

In search of safer and more effective fungicidal compounds,eight N-(4,6-disubstitued pyrimidin-2-yl)- benzamide s were designed and synthesized.

为了寻找高效、安全的杀菌活性化合物，设计并合成了8个N-(4，6-二取代嘧啶-2-基)苯甲酰胺类化合物，其化学结构经1HNMR、IR、LC/MS和元素分析确证。

Benzoperoxide/N,N-dimethylaniline initiator system that can eliminate the danger of using MEKPO/Co salt system used in UPR at room temperature was studied in this paper.

采用过氧化苯甲酰/N，N-二甲基苯胺固化体系室温条件下对不饱和聚酯树脂进行固化，可以降低常用的过氧化酮/钴盐体系的危险性。

To study the contents of amino acids of the samples of mulberry leaves from five varieties,the amino acids of mulberry leaves were derived with o-phthaldialdehyde and 9-fluorenylmetloyl chloroformate in pre-column,and DAD variable-wavelength as measure function,and separated by RP-HPLC.

以邻苯二甲醛与9-芴基羰酰氯作衍生剂，正缬氨酸为内标利用二极管阵列可变波长检测程序，采用柱前衍生反相高效液相色谱法测定5个桑叶品种的氨基酸含量。

Polyelectrolyte hydrogels based on n -alkyl methacrylate esters,acrylic acid and acrylamide cross-linked with 4,4′-diazobenzene were prepared.

合成了不同疏水链长的甲基丙烯酸酯、甲基丙烯酰胺及丙烯酸与 4 ，4′-二偶氮苯交联共聚的聚电解质凝胶。

Hydrogels based on n -alkyl methacrylate esters,acrylic acid and acrylamide cross-linked with 4,4′-diazobenzene were preparared.

合成了带不同疏水侧基的甲基丙烯酸酯、甲基丙烯酰胺及丙烯酸与 4，4′二偶氮苯交联共聚的凝胶。

In a similar way, using N,N\'-dibenzyl tartamide as auxiliary,-(2-methyl)allyl-2-chloro-phenyl-methyl azide, a vital intermediate of Repaglinide, can be prepared via asymmetric allylation of o-chlorobenzaldehyde in

产物经氧化和碘加成内酯化反应得到阿伐他汀中间体(3R，5S)-3-羟基-5-碘甲基戊内酯(10)；将N-苄基酒石酸二酰胺用于邻氯苯甲醛的不对称烯丙基化反应以较高光学收率得-甲基烯丙基-2-氯苯基-甲基醇

It is a convenient and efficient method of preparation of diethyl N--L-glutamate.

利用上述方法可以方便高效地制备N-［4-苯甲酰基］-L-谷氨酸二乙酯。

This reaction was further extended to the coupling reaction of amide with diiodo biphenyl; and the carbazole derivatives were synthesized in 53%-95% yield.

另外将该反应体系的底物进行了进一步的拓展，用酰胺和二碘代联苯化合物偶联，合成了9个咔唑衍生物，收率在53％—95％之间，并运用~1H NMR、~(13)C NMR、HRMS等分析测试手段对这些化合物进行了表征。

The synthesis of divinyl liquid crystalline monomer 4-undecenyloyloxybenzoyl-4'-allyloxybenzoyl-p-benzenediol bisate and network polymers was described. The chemical structures of the synthesized monomer and network polymers were confirmed by FT-IR spectrum.

以双烯类液晶单体4-十一烯酰氧基苯甲酸-4'-烯丙氧基苯甲酸对苯二酚双酯为交联剂，通过与聚矽氧烷接枝反应，合成了系列网络聚合物P1~P5。

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。