苄基

For developing an immunoassay for multiple residues of pyrethroid pesticides, the hapten N-2- carbanmoyl-(3"-phenoxyphenyl) methyl 3-(2"-Cldoro-3",3",3"-trifluoropropenyl)-2, 2-dimethylcyclopropane- carboxylate was synthesized from cyanohydrin and 3-(2"-Chloro-3",3",3- trifluoropropenyl)-2, 2-dimethylcyclopropanecarboxylic acid via hydrolysis and esterification. The synthesis of the hapten was foundation of preparaing anti- cyhalothrin polyclonal antibodies.

为了制备对单一拟除虫菊酯高特异性的抗体，以菊酸和氰醇为起始原料，通过水解、酯化反应合成了半抗原N-2-氨甲酰-(3-苯氧基苄基)甲基-3-(2-氯-3，3，3-三氟丙烯基)-2，2-二甲基环丙烷羧酸酯，为进一步制备抗三氟氰菊酯的特异性抗体奠定基础。

The auxiliary can be recovered in high yield (81%) only by filtering and recrystallization. Besides, some other aldehydes have been chosen to test the enantioselectivity of N,N\'-dibenzyl tartamide, in comparison with two other allylaborates reagents developed previously by Roush and Brown, respectively. The results show that %e.e. of homoallylic alcohol is superior to that of the former, and approaches the Brown reagent.

产物经S_N2反应得瑞格列萘中间体-甲基烯丙基-2-氯苯基-叠氮甲烷(17)；同时，将筛选出的新型手性配体N-苄基酒石酸二酰胺用于其他几种醛(正丁醛，异戊醛和环己醛)的不对称烯丙基化反应，并与广泛应用的Roush配体(22)和Brown配体(27)相比较，发现其立体选择性优于Roush配体，并接近Brown配体，但明显具有可回收利用的优势。

This thesis reported the research of carbonyl allylation and benzylation carded out in aqueous media.

该论文主要研究了纯水作为反应介质时，羰基化合物的烯丙基化和苄基化反应。

Methods:The target compound was synthesized using 4-hydrazino-N-methyl-benzyl-sulphonamide hydrochloride and 4,4-dimethoxy-N,N-dimethyl butylamine as the starting materials,PPA and sodium dihydrogen phosphate instead as catalysts and isopropyl ether and acetone as solvents for recrylstallization,via 4-step reactions:condensation,rearrangement,cyclization and salt formtion.

以4-肼基-N-甲基-苄基磺酰胺盐酸盐与4，4-二甲氧基-N，N-二甲基-丁胺为起始原料，改用多聚磷酸和磷酸二氢钠作为催化剂，后处理采用异丙醚和丙酮作为重结晶溶剂，经缩合、重排、环合、成盐的4步反应合成琥珀酸舒马曲坦。

Results: A total of 18 kinds of SVOCs were qualitatively and quantitatively analyzed, the main compounds deteced were dimethylphthalate, diethylphthalate, dibuylphthalate, bis (2-ethylhexyl) phthalate, phenol, chrysene, benzo anthracene, benzo fluoranthene, benzo perylene, indeno (1, 2, 3-cd) pyrene, dibenzo anthraeene.

结果：定性定量检出邻苯二甲酸二甲酯、邻苯二甲酸二乙酯、邻苯二甲酸二丁酯、双（2-乙己基）邻苯二甲酸酯、邻苯二甲酸二辛酯、丁基苄基邻苯二甲酸酯、苯酚、4-甲基苯酚、萘、荧蒽、芘、屈、苯并蒽、苯并荧蒽、苯并荧蒽、苯并二萘嵌苯、茚并(1，2，3-cd)芘和二苯并蒽18种优先控制有机污染物。

L-Phenylalanine was then obtained by alkylation of N- glycine ethyl ester with benzyl bromide in the presence of an asymmetric phase-transfer catalyst-N-benzyl-cinchonine chloride, followed by hydrolysis of the resulting product.

以甘氨酸乙酯盐酸盐和二苯甲酮为起始原料合成了N-二苯亚甲氨基乙酸乙酯，后者在手性相转移催化剂-N-苄基氯化辛可宁诱导下与烷基化试剂溴化苄发生不对称相转移催化烷基化反应，水解得到L-苯丙氨酸。

The p-tolyl benzyl ether was synthesized by reaction of p-cresol and benzyl chloride in 95% ethanol as solvent and under microwave irradiation.

以95%的乙醇为溶剂，以氯化苄和对甲苯酚为原料利用微波辐射加热合成对甲苯基苄基醚。

They are 2,7-dihydroxy-1,5,6-trimethoxy-9,10-phenanthrene,p-hydroxy phenyl aldehyde, 4-Hydroxybenzyl alcohol, Protocatechuic aldehyde, Gastrodin, 4,4'-Dihydroxydiphenylmethane,4-(4-(hydroxym-ethyl)phenoxymethylphenol,Isorhamnetin-3-O-glucoside,Isorhamnetin-3,7-di-O–glucoside, Imbricatin,2,3-dihydroxy-7-methoxy-9,10-dihydrophenanthropyrone, Cyclopholidone,Cyclopholidonol and β-daucosterol.

分别为：2，7-二羟基-1，5，6-三甲氧基-9，10-二氢菲，对羟基苯甲醛、天麻苷元、原儿茶醛、天麻素、4-（4-羟基-苄基）苯酚、4(4-苯氧基甲基苯酚、异鼠李素-3-O-葡萄糖苷、异鼠李素-3-O-7-O-二葡萄糖苷、Imbricatin、2，7-二羟基-3-甲氧基-9，10-二氢菲吡喃酮、Cyclopholidone、Cyclopholidonol和β-胡萝卜苷。

Fungicide DDSCwas synthesized from tin powder,benzyl chloride and N,N-dimethyldodecylamine via two steps reaction.

以锡、氯化苄和二甲基十二烷基叔胺为原料，经过两步反应，合成了新型杀生剂二苄基二氯化锡。

With the nitrobenzene、 m-chloronitrobenzene、 m-nirtobenzenesulfone sodium salt for bottom thing, Grinard agent is a nucleophilic reagent reaction for under the different term proceeds a series reaction.

以苄基氯化镁为亲核试剂，以硝基苯、间硝基氯苯、间硝基苯磺酸钠为底物进行亲核取代反应，探讨与芳环相连的吸电子基团的数目及吸电子性，对亲核取代反应的影响。

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。