查询词典 reagents

To investigate the structure change and movement status of molecule in wood caused by different reagents, the dynamic viscoelastic properties of Chinese fir wood treated by NaClO3 , DMSO, DEA-SO2-DMSO and nontreated wood under the fiber saturated point, temperature from - 100-10℃ at frequencies between 0.5 and 10 Hz were examined by DMA.

为了弄清楚不同化学试剂处理引起木材内部分子构造的变化及其分子的运动状态，该研究针对杉木试材，采用动态粘弹性分析仪，测定了含水率在纤维饱和点状态下脱木索处理木材、DMSO处理木材和非晶化处理木材以及素材，在-100—10℃、0.5-10Hz的动态粘弹性。

In the presence of suitable nickel catalyst and without the chelation effect of special designed dithioacetals, simple aliphatic dithioacetals could react with a series of Grignard reagents to give the corresponding olefinic products.

因此在适当的镍触媒存在下，脂肪族硫缩醛在不需要特别的螯合作用下，即可以与一系列的格林那试剂进行烯化反应。

This review on organobismuth chemistry is carried out as the following four aspects:(1) the molecular structure characteristics and synthesis of new organobismuth compounds;(2) as reagents for cross-coupling, oxidation, arylation, and other reactions;(3) as catalysts for organic synthesis;(4) as medicines for the treatment of ulcers, anti-tumor and radio-therapy, etc.

本文回顾了近10多年来有机铋化学的研究状况，主要从以下4个方面进行综述：(1)新型有机铋化合物的合成途径与结构特征；(2)有机铋化合物作为交联偶合、氧化、芳基化和其它反应的试剂；(3)作为催化剂；(4)作为生物医药用于溃疡、肿瘤和放射治疗等。

Recent advances in the application of chiral nitrogen-containing ligands in asymmetric addition reactions to imines with organolithium reagents are reviewed.

综述了近10余年来手性含氮配体在有机锂试剂对亚胺不对称加成反应中应用的研究进展。

Reaction of Carbonyl Compounds with Grignard and Organolithium Reagents.

有机金属试剂，活性和碱性，羰基化合物和格林试剂与有机锂试剂的反应。

Whenthey reacted with organolithium reagents,α-trifluoromethylketimines can be prepared.

用N-三氟乙酰基氨基膦盐和锂试剂作用后，〓锅法合成了α—三氟甲基酮亚胺。

The adantage that their use hae oer organolithium, organomagnesium and other organometallic reagents in related coupling reactions are their tolerance to a wide ariety of functional groups , their air stability and their relatiely low toxicity.

它们对各种不同功能基团的兼容性，在空气中的稳定性和相对低的毒性，使他们的应用涵盖了与交叉偶联反应有关的有机锂，有机镁及其它有机金属试剂。

The adantage that their use hae oer organolithium, organomagnesium and other organometallic reagents in related coupling reactions are their tolerance to a wide ariety of functional groups , their air stability and their relatiely low toxicity.

它们对各种不同功能基团的兼容性使他们的应用涵盖了与交叉偶联反应有关的有机锂，有机镁及其它有机金属试剂。

Through this research,we extended the appliacation of organozinc reagents in organic synthesis.

通过这些研究，我们扩展了有机锌试剂的应用范围，提供了高产率的合成γ-羰基酯化合物的有效方法在第三章中，我们研究了有机锌试剂在Baylis-Hillman类型反应中的应用。

This thesis is made up of two sections,The goal of the first section is to study the new reaction of organozinc reagents and applicability of it in the organic reaction.

本论文主要有两部分构成，前半部分主要工作是对有机锌试剂新反应的研究，考察有机锌试剂在这些反应中的适用性，以扩展有机锌试剂在有机合成中的应用范围。

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。