苄醇

Ce2(SO4)3 was used as an inexpensive and effective catalyst for the Friedel-Crafts alkylation of aromatic compounds with benzyl alcohol s, allyl alcohols and benzyl chlorides.

硫酸亚铈作为一种便宜的和有效的催化剂催化芳香化合物与苄基醇、烯丙醇类化合物和苄基氯的傅-克烷基化反应。

Ce2(SO4)3 was used as an inexpensive and effective catalyst for the Friedel-Crafts alkylation of aromatic compounds with benzyl alcohols, allyl alcohol s and benzyl chlorides.

硫酸亚铈作为一种便宜的和有效的催化剂催化芳香化合物与苄基醇、烯丙醇类化合物和苄基氯的傅-克烷基化反应。

In the first chapter of this thesis, we prepared the desired β-amino acid ester starting from 1-tridecanol and converted it to the corresponding γ-amino alcohol via LAH reduction and hydrogenolysis.

在论文的第一章，我们从十三醇出发，以S型苄基保护的α-甲基苄胺为手性源，经过多步反应制得光学纯的β-氨基酸酯衍生物。

Chapter 4: Synthesis of 1,5-diary 1-1,4-pentadien-3-ones from acetone or benzalacetone with aromatic aldehydes results in 86-97% yield with potassium hydroxide as catalyst under ultrasound irradiation in 5-60min.

为合成氰基环己醇找到一条方便高效的合成方法。第四章：研究了超声辐射下，以氢氧化钾为催化剂，芳香醛与丙酮及亚苄基丙酮之间反应合成1，5-双苄基-1，4-戊二烯-3-酮。

Di(3,4-dimethyl)benzylidene xylitol as synthesized in the lab from 3,4-dimethyl benzaldehyde and xylitol, and a series of polypropylene samples were prepared based on the amount of the nucleating agent, DMDBX used.

以3，4-二甲基苯甲醛和木糖醇为原料合成1，3-2，4-二（3，4-二甲基）亚苄基木糖醇，将DMDBX作为成核剂使用溶液沉淀法制备DMDBX质量分数分别为0、0.1%、0.3%、0.5%、0.7%、0.9%的聚丙烯样品，采用红外光谱仪、差示扫描量热仪、X射线衍射仪和偏光显微镜等方法，研究了DMDBX对PP结晶结构和结晶性能的影响。

Dibenzyl oxalate was synthesized from oxalic acid, potassium hydroxide and benzyl bromide under microwave irradiation using tetrabutylammonium bromide as phase-transfer catalyst and polyethylene glycol-200 as solvent.

在微波辐射条件下，以草酸、氢氧化钾和溴化苄为原料，四丁基溴化铵为相转移催化剂，聚乙二醇200为溶剂合成了草酸二苄酯，并通过熔点和红外光谱对产物的结构进行了表征。

The second synthetic strategy commenced from butane-1,4-diol 50, which underwent monobenzylation, Swern oxidation, enolization followed by acetylation and debenzylation to yield an intermediate 46 in an overall yield of 54% in a 4-step procedure.

第二条路线从1，4-丁二醇50开始，这个化合物经过单苄基化、Swern氧化、烯醇化随后乙酰化和脱苄基化共4步反应得到中间体46，总产率54％。

In this paper a series of multiblock copolymers were synthesized by polycondensation of poly , phthalic anhydride and epoxy resin in the presence of triethyl benzyl ammonium chloride as the catalyst.

以三乙基苄基氯化铵为催化剂，将聚乙二醇、邻苯二甲酸酐和环氧树脂进行共缩聚，制得聚乙二醇-环氧树脂系列多嵌段共聚体。

Methods:Dehydration of D-mannitol,followed by a reaction sequence of selective protection,benzylation,deprotection,tritylation,benzylation and removal of the trityl group,afforded the title compound.

以D-甘露醇为原料构建2，5-脱水-3，4，6-O-三苄基-D-葡萄糖醇的手性分子骨架，通过选择性地对多羟基的保护和脱保护达到对产物分离的目的。

By synthesizing the hapten LBc starting from the metabolite of bifenthrin (2-methyl-3-phenylbenzyl alcohol), LBs (2-methyl[1,1-biphenyl]-3-ylmethyl 3-carboxyl-2,2-dimethylcyclopropane carboxylate and Lby (2-methyl[1,1-biphenyl]-3-ylcarboxylic acid , Three haptens were praparaed which were used in next step.

利用联苯菊酯的代谢物联苯醇合成了联苯菊酯的半抗原LBc(2-甲基-3-苯基苄基氧基羰基丙酸)、LBs(2-甲基-3-苯基苄基-3-羧基一2，2-二甲基环丙烷羧酸)和LBy(2-甲基-3-苯基苯甲酸)。

Now, however, all children continue in "comprehensive" schools, and the eleven-plus determines which courses of study the child will follow.

然而现在，所有的孩子都要在综合学校继续学习，所以这次考试只是决定他们将要学习哪些课程。

Cultivatable land , and led to a general recognition that development must not be carried at the cost of agriculture .

城区的迅速扩大在很多情况下侵占了宝贵的可耕地，使人们普遍认识到发展不能以牺牲农业为代价。