原料

Levocetirizine Dihydrochloride was prepared from benzoyl chloride by acidylation,hydrogenation,cyclization with an overall yield of 8.05%.

以甲酰氯为原料,经酰化,还原,环合等反应合左旋西替利嗪盐酸盐,反应总收率为8.05%。

METHODS Terazosin hydrochloride was synthesized from anhydro-piperazine via acylation,reduction,amination,salification etc.

方法以无水哌嗪为起始原料,经酰化、还原、化、盐等反应制得盐酸特拉唑嗪。

Abstract A lightfast aq. polyurethane emulsion for leather finishing was prepared mainly from aliphatic isocyanate.

选择脂肪族异氰酸酯为主要原料，制备了一种耐光型水性聚氨酯皮革涂饰剂。

N,N-diethylaniline was synthesized under normal tempreture with tetraethyl ammonium hydroxide as phase transfer catalyst.

以溴乙烷为原料,用四乙基氢氧化铵作相转移催化剂,在常压下合N,N乙基。

The porkchop soup was cooked with the special technology, which had four stage.

以猪排骨为原料,采用四段工艺制作排骨汤。

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

方法以甲酰亚为原料经次氯酸钠氧化合目标化合物。

They make manufactures from their own raw materials.

他们用自己的原料制造产品。

Mainly used in lithopone and material in potass,and widely used in agriculture and lightindustry.

用于制造锌钡粉其他锌盐的原料，还广泛应用于农业与轻工业，用作肥料、饲料添加剂等。

2-cyanopyrazine is an important raw material in manufacturing pyrazinamide, anlitubercu-lar drug.

氰基吡嗪是生产治疗结核病药物吡嗪酰的重要原料。

He has invented a new method to reclaim valuable raw materials from industrial waste water.

他发明了一种从工业废水中回收有价值原料的新方法。

During preparing potassium sulfate or langbeinite,schoenite is the important middle resourses.

在硫酸钾或钾镁肥生产过程中,软钾镁矾是其中很关键的中间原料。

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

以对氯硝基活性氟化钾等为原料,经步法合了对氟。

Vc liposomes were prepared by the supersound method with glyceryl dilaurate as synthetic materials.

以自制月桂酸甘油酯为原料，选择超声乳化法制备了抗坏血酸类脂质体。

Trilobal polycarbosilane(PCS) fibers were prepared by melt spinning PCS precursor through Y-shaped spinnerret.

以聚碳硅烷（PCS）为原料，经不熔化烧制得三叶型碳化硅纤维。

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

以氮-苄基保护基酮为原料，经氢化，甲酰化，还原三步合双甲酰沙丁醇酯。

The preparation of anisaldehyde by ozonolysis reaction from anethole was studied.

以茴香脑为原料,乙酸环己烷的混合物做溶剂,臭氧化法制备茴香醛。

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

以3,6-氯哒嗪为原料,合了6类芳氧基哒嗪类衍生物,研究了它们的合方法,并测定了所得产物的除草活性。

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

以氯化亚矾及均四甲酸酐为主要原料通过酰氯法合了对位均甲酯酰氯。

A clean process for synthesizing fluobenzene with aniline was developed.

开发了以为原料的氟清洁生产工艺。

Baker loathed going to this red-haired young pup for supplies.

面包师傅不喜欢去这个红头发的自负的傻小子那里拿原料。