中间体

The aim was to investigate the process conditions of preparing the pesticide intermediate acrolein by using biological glycerol.

［目的］考察生物甘油制备农药中间体丙烯醛的工艺条件。

They are also considered as synthetic intermediates for the construction of numerous cyclic and acyclic compounds.

在合成化学中，有机化学家也常常通过它们作为合成复杂天然或非天然产物的关键中间体。

In organic chemistry field, acyl chloride s play an important role.

酰氯是重要的有机合成中间体，在合成化学领域起着非常重要的作用。

Aggregately, we computed 24 reaction pathways, and found out 26 intermediates and 36 transition states in this section.

我们主要研究了Hg和Sn这两种元素在燃烧过程的微观反应特性，研究了17个反应体系，计算了24条反应通道，找到了26个反应中间体和36个反应过渡态。

Generally speaking add oil in the middle and use protecting film to isolate air from it.

一般的做法是以油为中间体，然后用保护膜隔绝空气

Sodium cyclohexanoloxyacetate was synthesized by 1mol︰1.15mol of cyclohexyl sodium alcoholate to sodium chloroacetate at 135145℃.The reaction time was 2.5h and the yield was about 81%.The sodium cyclohexanoloxyacetate was acidified by HCl to get the intermediate product,2-cyclohexanoloxyacetic acid.

以摩尔比为1︰1.15的环己醇钠和氯乙酸钠为原料，在135145℃下反应合成了环己氧基乙酸钠，反应时间为2.5h，收率约为81%，再将环己氧基乙酸钠用盐酸酸化制得中间体环己氧基乙酸。

The main products and business: Pharmaceutical intermediates,Bactericide and Algaecide, Amino acids and derivatives,Polypeptide reagents, Chiral compounds, oxygen absorbers, biochemical reagents and fine chemicals, our products sold in Europe and America, the Middle East and other regions.

主要产品及业务：医药中间体，水处理杀菌剂，氨基酸及衍生物，多肽试剂，手性化合物，脱氧剂，生化试剂和精细化学品，销往欧美，中东等地区。

Under the alkalescency condition, the changing of pH value effect the decompounding rate of phenol, along with the pH value accretion the decompounding rate decrease.

在BPBC处理苯酚废水的过程中，有中间体的产生，如果要彻底除去苯酚废水中的有机物，实际电解时间不宜小于30min。

Alkylamine reaction with dialkyl cyanodithioiminocarbonate was catalyzed by quaternary ammonium salts at room temperature to yield 3-alkylamine-5-amino-1,2,4-triazole in good quality and high yields. After imidization and reaction with an α,β-unsaturated acid derivative, the reaction intermediate was hydrolyzed in the presence of a Lewis acid to obtain the target product.

烷基胺与氰基亚胺硫代二甲酯在季氨盐催化作用下得到质量好、收率高的3-烷氨基-5-氨基-1，2，4-三氮唑，进一步经过亚胺中间体并与α，β-不饱和酸酯作用后，中间产物在Lewis酸催化作用下水解得到三唑嘧啶酮。

In this study enamine was used as the reactive intermediate for alkylation of cyclohexanone alkylate,to provide a new route to synthesize the perfume-α-tert-butylcyclohexanone after overcoming many disadvantages of the traditional technical route,such as the complicated of reaction steps,the expensive reagents adopted,the high demand for the equipment used,and the low yield of product.

利用烯胺作为环己酮烷基化的活性中间体，为香料α-叔丁基环己酮的合成提供了一条新的途径，克服了传统工艺反应步骤烦琐，试剂昂贵，设备要求较高，产率不高等缺点，易于工业化生产。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。