synthesize GMAT专八GRE六级

Propylene glycol monoether acetate was synthesized using heteropoly acid as catalyst for the firsttime.

首次杂多酸为催化酯化法合成丙二醇单乙醚乙酸酯。

Nefedipine was synthesized with m-Nitrobenzaldehyde,ethyl acetoacetate,ammonium acetate.

间硝基苯甲醛,乙酰乙酸乙酯,氨化试为原料。

Six series of aryloxy pyridazines derivatives have been synthesized starting from 3,6 dichloro pyradizine.

3,6-二氯哒为原料,合成了6类芳氧基哒类衍生物,研究了它们的合成方法,并测定了所得产物的除草活。

The target compound was synthesized from N-benzyl protected aminoacetophenone through hydrogenation,benzoylation and reduction.

-苄基保护胺基酮为原料，经氢化，苯甲酰化，还原三步合成双苯甲酰沙丁胺醇酯。

A clean process for synthesizing fluobenzene with aniline was developed.

开发了苯胺为原料的氟苯清洁生产工艺。

It is synthesized by oxidation of isocitrate, coupled to the reduction of NAD.

由异柠檬酸氧化而来，同时伴有NAD的还原。

The heptanal butyl mercaptal was synthesized with heptanal, sodium thiosuifate and 1bromobutane as raw materials.

正庚醛、硫代硫酸钠和溴代正丁烷为原料,合成了正庚醛正丁硫醇缩醛。

Bromooctane was synthesized from industrial hydrobromic acid(48%) and n-octanol using concentrated sulfuric acid as catalyst.

工业废氢溴酸(48%)为原料,在浓硫酸存在下,与正辛醇进行反应合成1-溴辛烷。

Hexahydroxy N-containing heterocyclic compound without sulfur and phosphorus was synthesized and its structure was characterized.

合成了无硫、磷的六元含杂环化合物添加。

In this paper, the cedrol methyl ether was synthesized by sodamide method.

本文氨基钠法合成甲基柏木醚。

Tri (tribromophenyl) cyanurate is synthesized from Tribromophenol and Cyanuric Chloride.

摘要由三聚氯氰和三溴苯酚反应制得化合物三（三嗅苯酚）氰尿酸酯。

Cu furaldehyde-ethylene diamine Schiff base complex was synthesized with the yield of 63.

合成了一种席夫碱金属络合物——呋喃甲醛乙二胺铜络合物,收率为63。

Thioglycolic acid(TGA) was synthesized from thioglycolic acid and sodium hydrosulfide under common pressure.

研究了硫氢化钠和氯乙酸钠为原料常压合成巯基乙酸。

Three novel malononitrile derivatives have been synthesized by the solid state reaction at room temperature.

固相反应合成了新型丙二腈类化合物。

METHODS The title compound was synthesized from phthalimide by oxidation with sodium hypochlorite.

方法邻苯二甲酰亚胺为原料经次氯酸钠氧化合成目标化合物。

This proved that nitrourea was a more suitable reactant than urea to synthesize Keto-RDX.

由此表明了在生成RDX酮的反应过程中，硝基脲上比脲更为合适的反应形式。

In this paper,the process of synthesizing new model weedicide oryzalin was studied.

本文对新型除草安磺灵的合成工艺进行了研究。

Taking pyromellitic dianhydride and thionyl chloride as raw key material, 2,5-bis(methoxycarbonyl)terephthaloyl chloride was synthesized.

氯化亚矾及均苯四甲酸酐为主要原料通过酰氯法合成了对位均苯二甲酯二酰氯。

Two series of tolan-type liquid crystals containing terminal cyano group were synthesized.

设计并合成了一类新型末端氰基取代含氟二苯乙炔类液晶。

Fluoroaniline is synthesized in two steps from p-nitrochlorobenzene and active potassium fluoride.

对氯硝基苯和活氟化钾等为原料,经二步法合成了对氟苯胺。