Dimethyl dioxirane was prepared with potassium monoperoxy sulfate and acetone.

通过过一硫和丙酮反应,合新型高效的氧化剂二甲二氧环烷。

It is ascertained that the PABA may be N-dimethylated using dimethyl sulfate as a methylation agent.

确定以硫二甲酯为N——甲化剂,对对氨苯甲PABA进行N——二甲化.

In this thesis, the reaction of aldehydes with dimethyl -- dichlorosilane producingdimethylsilyl bis -- enol ethers has been studied.

本文对醛和二甲二氯烷反应合二甲烯醇醚进行研究。

The polyester or copolyester can be converted into dimethyl terephthalate of binary acid and glycol by method of methanolysis.

介绍用甲醇醇解法把聚酯或共聚酯解聚二元二甲酯和二元醇。

Tribenzyl isocyanurate was prepared by reaction of isocyanuric acid with benzyl chloride and with N,N dimethyl formamide(DMF)used as solvent.

采用N，N-二甲甲酰胺作溶剂，氰尿、苄氯为原料合氰尿三苄酯。

The catalysts and reaction conditions have been studied for esterinterenange between propenyl carbonate and methanol to produce dimethyl carbonate (DMC).

研究碳丙烯酯和甲醇经酯交换制备碳二甲酯的催化剂及反应工艺条件。

It has discovered that trace dimethyl glyoxime can sensitivly catalyize the discoloration of dimethyl yelloue by potassium bromate in sulphuric acid.

研究发现，在硫介质中，超痕量二甲乙二醛肟能灵敏地加速溴钾氧化二甲黄褪色的指示反应。

The enantioselectivity of N-dodecanoyl-L-proline-3,5-dimethyl-anilide is also good, but the basic line fluctuates strongly due to containing benzene ring in its molecular structure.

虽然用N-十二酰-L-脯氨-3,5-二甲苯胺作添加剂，手性选择性也较好，但由于含有苯环，紫外吸收增强，线波动严重。

Citral was synthesized by catalytical rearrangement of dehydrolinalool in toluene solution with the present of molybdenyl acetylacetonate, benzoic acid and dimethyl sulfoxide (DMSO).

摘要采用脱氢芳樟醇为原料，在乙酰丙酮钼、苯甲、二甲亚砜(DMSO)的甲苯溶液中催化重排合柠檬醛，考察柠檬醛在不同体系中的热敏性。

The separation of three-component system of cyclohexane,cyclo-hexene and benzene by extract rectification with a mixed solvent,comprising hexyl dicyanide and dimethyl acetylamine has been studied.

选用己二腈-二甲乙酰胺组的混合溶剂，对环己烷、环己烯和苯组的三元体系进行萃取精馏。

Dimethyl fumarate, metyl topsin and sodium dehydrogene acetate were used in the antiseptic treatment during storage of Kudzu. The experiment indicated that the effects of metyl topsin was the best.

试用富马二甲酯、甲脱布津、脱氢醋钠3种防腐剂对抑制葛根采后的霉变情况进行初步研究,结果表明:在所用3种防腐剂中,甲脱布津的防霉效果最好。

Dimethyl phenylethyl carbinyl acetate (DPCA ) was synthesized by using a new catalyst. This technology decreases the pollution and can also be used in synthesis of other carbinyl acetates perfume.

用一种新型催化剂合乙二甲苯乙原酯(DPCA),并简化合工艺,减少生产过程中产生的三废,因而投入生产已具备必要条件。这种新型催化剂可用于其它原酯类香料的合。