氯醛

Toxic effects of 1,2,4-trichlorobenzene (1,2,4-TCB) on Scenedesmus obliquus were studied through investigating the growth, the content of protein and the content of chlorophyll.

以1，2，4-三氯苯(1，2，4-TCB)处理后斜生栅藻的生长状况、蛋白质含量、叶绿素含量、超氧化物歧化酶和过氧化物酶活性、丙二醛含量和培养液总有机碳含量的改变来检测1，2，4-TCB对斜生珊藻的毒性效应及其毒性作用机制。

Microcrystalline cellulose was activated with NaOH solution, then its C2-C3 bond was oxidized with NaIO4 to generate oxycellulose under the acidic condition. The hydroxy on C6 in oxycellulose was chlorinated with sulfur oxychloride in DMF to give oxycellulose chloride.

将微晶纤维素先用NaOH溶液进行活化，然后在酸性条件下，用NaIO4氧化2，3位成为醛基，使其成为氧化纤维素，再将其在DMF下用二氯亚砜进行六位氯化制得氧化纤维氯化产物。

In order to find highly active pesticide, three series of 5--12-substituent-benzo phenanthridine derivatives were synthesized through the reaction of 2-methylbenzonitrile with dif-ferent aldehyde, and further dehydration with DDQ or N-methylation with NaH and CH3I, respectively.

为了寻找新的高活性农药，利用2-甲基苯甲腈与不同的醛反应，再通过2，3-二氯－5，6-二氰基－1，4-苯醌脱氢或NaH和CH3I氮甲基化，合成了3个系列共18个5-取代氨基－12-取代苯并菲啶衍生物，其中15个是未见文献报道的化合物。

A reduction-coupling-etherification reaction between aromatic aldehydes or ketones (1) and alcohols ( 2 ) to yield corresponding diether ( 3 ) of pinacol in the presence of tin and chlorotrimethylsilane.

在三甲基氯硅烷、四氢呋喃体系中，芳香醛、酮和醇在金属锡的作用下发生还原-偶联-醚化反应生成相应的频那醇二醚类化合物。

The hydroxyl group is usually ortho directing but in the case of salicylaldehyde, the chlorine stom enters para to the hydroxyl group and not in the other ortho position.

羟基通常是邻位的指挥羟基的帕拉和不是另一邻位的在自己的位置上但是氯stom在水杨醛的情况上登记。

First, 4-(2, 3-epoxypropoxyl) benzaldehyde was obtained by reaction of 4-hydroxy benzaldehyde and epichlorohydrin. Then, the Wittig reaction was carried out to convert EBD to styryl glycidyl ether.

首先用对羟基苯甲醛和环氧氯丙烷反应制备4-(2， 3-环氧丙氧基)苯甲醛，然后通过Wittig反应将醛基转化为乙烯基得到含环氧基团的功能性单体苯乙烯基环氧丙基醚，最后用ATRP方法聚合单体SGE得到含环氧侧基的聚苯乙烯。

This product alone curing slow, usually thiuram disulfide carbamate, aldehyde amines, guanidine type accelerator and used, is an excellent anti-G-CR scorch agents, plasticizers and delay agent .

本品单独使用硫化速度慢，通常和秋兰姆、二硫化氨基甲酸盐、醛胺类、胍类促进剂并用，是G型氯丁胶的优良抗焦烧剂、增塑剂和延迟剂。

All of the tripodal schiff base ligands and their complexes were characterized.

以三乙醇胺、巯基苯胺、巯基乙胺为初始原料，设计合成了六个三脚架结构的化合物，其合成路线如下：三乙醇胺与氯化亚砜反应得到三(2-氯乙基)胺(1)，然后与巯基苯胺或巯基乙胺在碱性条件下反应生成三脚架结构的三{[2-(2-氨基苯基)硫代]乙基}胺(2)或三{[2-(2-氨基乙基)硫代]乙基}胺(3)，然后再与水杨醛、2-甲酰基-8-羟基喹啉(8)、2-甲酰基-8-苄氧基喹啉(7)反应得到六种新型的含硫西佛碱化合

Study on technics of synthesize dimethyl fumaricate, firstly prefabricated fumaric acid, with furfural as raw material, V2O5 as catalyst and potassium chlorate as oxidizer then synthesized dimethyl fumaricate through esterication of fumaric acid and methanol with phosphor tungstenic acid as catalyst.

研究了以糠醛为原料，V2O5作催化剂，用氯酸钾氧化制取富马酸，然后以磷钨酸为催化剂，用甲醇进行酯化合成富马酸二甲酯的合成工艺。

The effect of impurities in DMDAAC monomer solution, such as NaCl, allyl chloride, allyl alcohol, allyl aldehyde, active carbon, low molecular polymer of DMDAAC, yellow residua, Fe~(3+), Fe~(2+), Cu~(2+), on the polymerization reactivity of preparing PDA with 30％cationicty was researched in this paper.

本文研究了二甲基二烯丙基氯化铵单体溶液中氯化钠、烯丙基氯、烯丙醇、烯丙醛、活性炭、低分子聚合物、黄色物质、Fe~(3+)、Fe~(2+)、Cu~(2+)等杂质对合成阳离子度为30％PDA的聚合反应性能的影响。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。