氧氢基

Co condensation type polyamides were prepared by using 1,2 dihydro 2 (4 aminophenyl) 4 [4 (4 aminophenoxyl) phenyl] phthalazin 1 one and 4,4′ diamino biphenyl ether or 4,4′ diamino biphenyl methane as the co diamine monomers and aromatic diacid as the co condensation monomer.

采用 1 ，2 -二氢-2 -( 4-氨基苯基)-4 -[4 -( 4-氨基苯氧基)-苯基 ]-二氮杂萘-1 -酮、4 ，4′-二氨基二苯醚、4 ，4′-二氨基二苯甲烷为共缩聚二胺单体与对苯二甲酸进行共缩聚反应，制备共缩聚型聚酰胺。

The reaction mechanism for the formation of ultimate carcinogens diazohydroxide, diazonium and oxoniumions by α-hydroxylation-NPYR and the alkylation process of C and guanine were investigated including solvent effects at the B3LYP/6-31G(superscript **) level.

采用密度泛函理论，在B3LYP/6-31G水平上，研究了气相和水溶剂中，α-羟基化吡咯烷亚硝胺(-αhydroxylation-NPYR， A)代谢为终致癌物重氮氢氧化物、重氮烷阳离子和氧离子，以及C与鸟嘌呤碱基相互作用的反应机理。

Result: 5 compounds were identified as eriodictyol (1), 5, 7-dihydroxy-3′, 4′-dimethoxy flavanone (2), oleanolic (3), 5, 7-dihydroxychromone (4) and homeriodictyol (5) by spectral evidences, in which homeriodictyol (5) had acceleration differentiation to PC12 cell.

结果：获得了5个主要化学成分，即北美圣草素(1)， 5，7-二羟基-3′，4′-二甲氧基-二氢黄酮(2)，齐墩果酸(3)， 5，7-二羟基色原酮(4)，高北美圣草素(5)。经活性筛选试验发现，化合物高北美圣草素(5)具有促PC12细胞分化作用。

Analogous complexes 3a" and 4a"= CpRu(PPh32, Ar = para-C6H4OMe containing methoxy group at the para-position of gem-diphenyl group were similarly obtained from protonation of the corresponding acetylide complexes via formation of vinylidene intermediate. But only complex 3a'= CpRu(PPh32, Ar2 = fluorenyl is stable in solution, and decomposed to unidentified complex when heated to reflux in THF. Deprotonation of complex 4a in the presence of base gives neutral acetylide complex 6a.

在两个相邻位置的苯基对位位置上接有一甲氧基的衍生物3a&和4a&也可利用类似的质子化反应合成，唯有错合物3a'= CpRu(PPh32， Ar2 = fluorenyl 可以稳定於溶液中，不会进行上述反应，如将其溶於四氢呋喃溶液加热至沸腾则会分解产生无法鉴定的化合物。

A new synthesis method of metal-free phthalocyanine using 1,3-diiminoiso- indoline as main material and trimethoxysilane as hydrogen donator was developed in this paper.

本文建立了以酞菁素为原料，喹啉为溶剂，三甲氧基硅烷为供氢剂，合成无金属酞菁的新方法。

Through the use of high-level quantum-chemical calculations, two experimentally observed isoenergetic isomers are assigned to complexes in which a water dimer is hydrogen-bonded either to the carbonyl oxygen of the ester function or to the amino nitrogen.

通过高层次的量子化学计算上的应用，两个实验观察isoenergetic异构体被分配到复合物，其中一个水二聚体的氢键要么酯的羰基氧的功能或对氨基氮。

Sinomenine,7,8-didehydro-4-hydroxy-3,7 -dimethoxy-17-methylmorphinan-6-one,an isoquinoline alkaloid isolated from the stem and root of the Chinese medicinal herb, Sinomenium acutum Rehd.

青藤碱即7，8-二去氢-4-羟基-3，7-二甲氧基-17-甲基-9α，13α，14α-吗啡烷-6-酮是从植物青风藤Sinomenium acutum Rehd。

In this work,the new kind of polyurethane have been prepared from Bis(4—β—hydroxyphnyl)sulphone,polyhydrofuran, 4,4′—di—phenylmethane diisocyanate,by one—step reaction metho -d and block copolymerizatiano.

本文用一步反应法，由双(4-β-羟基乙氧基苯)砜，聚四氢呋喃，4，4′—双苯基甲烷二异氰酸，采用嵌段共聚法，制成了一种新型聚氨酯。

2AN oxygen radicle benzene Mao water solution reaction process in, the hydrogen bromine is sour with acetic acid Mo Er compare for 1:be tetrahydroxy and 2 mols at 1:00|weigh to crystallize in the L hydrochloric acid aqua, the product accepts to lead superior turn

甲氧基苯醌水解反应过程中，当氢溴酸与醋酸摩尔比为1：1时，四羟基苯醌与2mol/L的盐酸溶液中重结晶产品收率最佳

The results of CO hydrogenation showed that the existence of CNTs enhanced the activity of the Rh-Ce-Mn/Si02 catalyst. Under the specific reaction conditions, the CO conversion was 11.86% and the yield of oxygenates was 336.2g/ when the CNTs content was 10%.

CNTs促进的铑基催化剂的CO加氢活性明显提高，当CNTs添加量为10%时，一定条件下催化剂上含氧化合物的时空收率可达336.29/。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。