烯醇式

The common chemical constituents were juniper camphor,1,3,3-trimethylcyclohex-1-ene-4-carboxaldehyde,borneol,α-curcumene,α-bisabolol,cis-caryophyllene,benzyl benzoate,methyl β,β-dimethylbenzenepropanoic acid ester,2,4-decadienal and heneicosane in the essential oil of the five cultivars' Hangjuhua.Among them,juniper camphor is most which were composed of 11.96%,10.51%,10.95%,13.28% and 10.77% of the total essential oil,and methyl β,β-dimethylbenzenepropanoic acid ester is second,which were composed of 1.51%,1.86%,2.52%,4.89% and 2.51% of the total essential oil,respectively.

5种栽培类型杭菊花挥发油中共有成分为1，3，3-三甲基环己-1-烯-4-甲醛、冰片、α-姜黄烯、α-甜没药萜醇、顺式石竹烯、桧脑、安息香酸苄酯、β，β-二甲基苯丙酸甲酯、2，4-癸二烯醛和二十一烷；其中桧脑含量最高，分别占挥发油总量的11.96%，10.51%，10.95%，13.28%和10.77%，为5种栽培类型杭菊花挥发油中最具特征的成分；其次是β，β-二甲基苯丙酸甲酯，分别占挥发油总量的1.51%，1.86%，2.52%，4.89%和2.51%。

First, a chlorinator was self-designed in this paper, and dichloride of 2-methyl-1-propene was synthesized by 2-methyl-1-propene reacted with chlorine fast in this reactor. By means of the Orthogonal Experiments design and single factor experiments, the influence of several reaction variables on the yield were examined and the optimum reaction conditions under the intervallic operation were obtained, the yield and selectivity of dichloride of 2-methyl-1-prop-ene were more than 65% and 80% respectively. Second, the preparation of 2-methylene-1, 3-propanediol, which dichloride of 2-methyl-1-propene reacted with alkali was investigated. By means of the Orthogonal Experiments design and single factor experiments, the influence of several reaction variables on the yield were examined and the optimum reaction conditions under the intervallic operation were obtained, the conversion of dichloride of 2-methyl-1-propene was 100%. Moreover the preparation of MPO, which 2-methylene-1, 3-propanediol reacted with hydrogen, in presence of Al_2O_3-Pd catalyst, was gotten, and the product was appraised.

本文在氯化反应过程中，自行设计制作出了氯化管式反应器，在该反应器中异丁烯和氯气迅速混合反应生成二氯异丁烯，根据该氯化反应特征利用正交试验和单因素试验考察了有关因素的影响并优化得到了最佳工艺条件，二氯异丁烯的总收率达65％以上，选择性达80％；接着，对二氯异丁烯进行水解反应制得了2-甲烯-1，3-丙二醇，讨论了相关因素对水解反应的影响，并通过正交试验和单因素试验得到了较佳工艺条件，二氯异丁烯的转化率达100％；同时还对制备的2-甲烯-1，3-丙二醇在常压下采用三氧化二铝负载钯催化剂催化加氢得目的产物MPO，并对产品进行了鉴定，从而打通了整个工艺路线。

The main chemical components of Bulgaria are Citronellol、Trans-Geraniol、Nerol、Methyl eugenol、Linalool、β-Phenyl ethyl alcohol. The main chemical components of Xinjiang Province areβ-citronellol、trans-geraniol,β-phenyl ethyl alcoho, farnesol, geranellyl acetete, 7-octamoic acid ethyl ester.

保加利亚玫瑰油的主要成分为β-香茅醇、反式－香叶醇、橙花醇、芳樟醇、β-苯乙醇、甲基丁子香酚；新疆玫瑰油的主要成分为β-香茅醇、反式-香叶醇、β-苯乙醇、7-辛烯酸乙酯、乙酸香叶酯、金合欢醇。

The main compounds in the natural terpineol oil were eucalyptol, trans4thujanol, pisopropenyl toluene, cis4thujanol, linalool, camphor, borneol, 4terpineol,αterpineol and safrole.

天然松油醇粗油中主要成分是1，8桉叶素、反式4艹守醇、p异丙烯基甲苯、顺式4艹守醇、芳樟醇、樟脑、龙脑、4松油醇、α松油醇和黄樟素。

ABSTRACT Immobilized penicillin acylase (from E.coli) was used to catalyze 7 phenylacetamido 3 E propenyl cephalosporanic acid hydrolyzation into 7 amino 3 E propenyl cephalosporanic acid. Then, trans APRA was acylated with hydroxyethyl ester of 4 hydroxy D phenylglycine to obtain trans cefprozil.

以7 苯乙酰氨基 3 E 丙烯基 3 头孢菌素 4 羧酸为原料，在青霉素酰化酶作用下，首先酶法水解得到3 E 丙烯基 3 头孢菌素 4 羧酸，过滤固相酶，滤液调pH分离得到反式APRA固体；在青霉素酰化酶作用下，反式APRA再与对羟基苯甘氨酸乙二醇酯缩合，得到反式头孢丙烯；酶法合成所得的产品与进口反式头孢丙烯对照品一致。

The forming mechanism of dihydrophenophosphazine by the interaction of Ph〓NH and PCl〓 was studied, and the possible forming mechanism of spiro phosphonium chloride in the same reaction system was also proposed.

讨论了二苯胺与三氯化磷的成环机理以及反应过程中螺磷杂环化合物的形成机制，提出5，10-二氢磷杂吖嗪-10-氧化物存在类"烯醇—酮式"互变异构现象。

The main compositions were trans-β-farnesene,β-pinene, caryophyllene oxide, spathulenol, nerolidol, which were much different from other Compositae plant.

主要成分为反式-α-香柠檬烯、β-蒎烯、石竹烯氧化物、匙叶桉油烯醇、橙花叔醇等，其主要成分与菊科其他植物的明显不同。

Chapter 2 has analysized the conversly synthetic means of solanesol and designed novelly synthetic routes of solanesol and key intermediate Chapter 3 has summarized the preparation of trans-3-methyl-4-hydroxy (bromo-2-butenyl oxy methyl benzene In chapter 4 ,a novel technology of important intermediate(all trans-8-bromo geranyl acetate),which is suitable for industrial procedure , was found .meanwhile,an another new way has been invented ,of which the key intermediate (all trans-8-hydroxy geranyl acetate) has been produced.

第二部分分析了茄尼醇的逆合成方法，设计了一条适合于合成茄尼醇的合成路线及其重要中间体的合成路线。第三部分研究了重要中间体[Trans-3-甲基-4-羟基-2-丁烯基乙酰基(苄基，2，3-二氢吡喃基)醚]的合成新方法，找到了一条适合于工业化生产的制备反式-3-甲基-4-羟基-2-丁烯基苄基醚的新方法。第四部分研究了重要中间体[-3，7-二甲基-8-羟基-2，6-辛二烯-1-醇乙酸酯、-3，7-二甲基-8-溴-2，6-辛二烯-1-醇乙酸酯]的合成新方法，找到了一条适合于工业化生产的制备它们的新方法；同时研究了一条制备-3，7-二甲基-8-羟基-2，6-辛二烯-1-醇乙酸酯的另一新方法。

Leaf oil of Litsea cubeba:α-cis-ocimene,-3, 7-dimethyl-1, 6-octadien-3-ol and n-trans-nerolidol

山苍子叶油：α-顺式罗勒烯、3，7-二甲基-1，6-辛二烯醇-3、正-反式橙花椒醇

Bacterial enolpyruvyl transferase is one of the key enzymes acting in the initial stage of peptidoglycan synthesis of bacterial cell walls.

肽聚糖是细菌细胞壁的重要成分，烯醇式丙酮酸转移酶是调节肽聚糖合成初始阶段的关键酶。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。