synthesize GMAT专八GRE六级

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

首次以杂多酸为催化剂采用酯化法丙二醇单乙醚乙酸酯。

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

以间硝基苯甲醛,乙酰乙酸乙酯,氨化试剂为原料。

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

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

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

以氮-苄基保护胺基酮为原料，经氢化，苯甲酰化，还原三步双苯甲酰沙丁胺醇酯。

A clean process for synthesizing fluobenzene with aniline was developed.

开发了以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，同伴有NAD的还原。

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

以正庚醛、硫硫酸钠正丁烷为原料,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.

以工业废氢酸(48%)为原料,在浓硫酸存在下,与正辛醇进行反应1-辛烷。

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

了无硫、磷的六元含氮杂环化物添加剂。

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

本文采用氨基钠法甲基柏木醚。

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

摘要由三聚氯氰三苯酚反应制得化物三（三嗅苯酚）氰尿酸酯。

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

了一种席夫碱金属络物——呋喃甲醛乙二胺铜络物,收率为63。

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

研究了以硫氢化钠氯乙酸钠为原料常压巯基乙酸。

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

固相反应了新型丙二腈类化物。

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

方法以邻苯二甲酰亚胺为原料经次氯酸钠氧化目标化物。

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

由此表明了在生RDX酮的反应过程中，硝基脲上比脲更为适的反应形式。

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

本文对新型除草剂安磺灵的工艺进行了研究。

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

以氯化亚矾及均苯四甲酸酐为主要原料通过酰氯法了对位均苯二甲酯二酰氯。

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

设计并了一类新型末端氰基取含氟二苯乙炔类液晶。

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

以对氯硝基苯活性氟化钾等为原料,经二步法了对氟苯胺。