查询词典 derivative

In the presence of alkalinity and tetraethyl ammonium bromide, 2,4-dihydroxy benzophenone reacts with allyl glycidyl ether to form an ethylenic derivative of benzophenone, 2-hydroxy-4-(β-hydroxy-γ-allyloxy) propyloxy benzophenone, which can further undergo hydrosilylation with polyhydromethylsiloxane.

在相转移催化剂四乙基溴化按作用下，利用2，4-二羟基二苯甲酮与烯丙基缩水甘油醚在碱性水溶液中的开环加成反应，合成了中间体4-丙氧基－2-羟基二苯甲酮，将其进一步与聚甲基氢硅氧烷进行硅氢化加成反应。

Etymologically, in fact, its Latin derivative is scepticus, for "inquiring" or "reflective".

在词源学上，它的拉丁衍生字是&scepticus&，意思是「探索的」、「省思的」。

The process comprises the subsequent steps a through e: a reacting phthalic anhydride with fluorobenzene or a derivative thereof in appropriate reaction conditions; b over reducing the product obtained in step a at the ketone moiety; c reducing the product obtained in step b with sodium dihydro-bis (2- 15 methoxyethoxy) aluminate to the corresponding alcohol ; d chlorinat ing the alcohol obtained in step c ; e inserting CO into the product obtained in step d through an appropriate Pd-containing catalytic system.

该方法包括以下步骤a～e：a使邻苯二甲酸酐与氟苯或者其衍生物在适当的反应条件中反应；b完全还原步骤a中获得的产品的酮部分；c用二氢-二(2-甲氧基乙氧基)铝酸钠将步骤b中获得的产品还原成相应的醇；d对步骤c中获得的醇进行氯化；e通过适当的含Pd的催化剂体系，将CO插入到步骤d中获得的产品中。

Methods Using LineGene fluorogenic quantitative PCR detection system to detect HBV DNA of 77 patients and second derivative maximum method and fit point method to analyze results.

用LineGene FQD33A型荧光定量PCR检测系统检测本院门诊和病房乙肝病人血清HBV DNA 77份，分别用最大二阶导数法和样点拟合法进行结果分析。

Multiwavelength responsive materials and devices using 4-oxazolyl fulgide (OF7) companied with pyrrolyl fulgide and derivative are prepared.

这类化合物的光致变色产物在室温下是稳定的。

Furoic acid was synthesied by catalytic oxidation in the mimic enzyme microreactor, which was constructed by strong stirring a non homogeneous phase system of organic reagent and water using β cyclodextrin derivative as an imitating enzyme. This method is easy to handle and more effective than the corresponding reaction in homogeneous phase.

在水与有机试剂组成的非均相体系中，用β环糊精(β cyclodextrin ，缩写：β CD)衍生物模拟生物酶，以强力搅拌下分散在有机溶剂中的小水珠作为微型反应器进行糠醛催化氧化为糠酸的反应，停止搅拌后体系立即分层，产物在有机相，残留的原料和模拟酶在水相。

Furoic acid was synthesied by catalytic oxidation in the mimic enzyme microreactor, which was constructed by strong stirring a non homogeneous phase system of organic reagent and water using β cyclodextrin derivative as an imitating enzyme.

在水与有机试剂组成的非均相体系中，用β环糊精(β cyclodextrin ，缩写：β CD)衍生物模拟生物酶，以强力搅拌下分散在有机溶剂中的小水珠作为微型反应器进行糠醛催化氧化为糠酸的反应，停止搅拌后体系立即分层，产物在有机相，残留的原料和模拟酶在水相。

Aim To study whether the derivative of in-dol-3-glyoxylic acid amide induced apoptosis on human galactophore cancer HeLa cells line in vitro and the feasible mechanisms of apoptosis.

目的 研究吲哚3-草酰胺衍生物YB-13在体外试验中诱导宫颈癌细胞株发生凋亡及其作用机制。

We have provided another in our contribution to GATA's gold derivative banking crisis document presented to the US Congress last May.

我们提供给GATA了一份我们自己做的关于金融衍生品危机的文件，并且已已经在上个5月份提交给美国国会。

For high quality voice transformation, a novel parameter extraction scheme for glottal flow derivative is proposed based on Legendre orthogonal decomposition.

提出了一种用于源-目标说话人声门波导数参数转换的、基于勒让德正交分解的声门波导数波形参数提取方法。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。