氯化磷

The hydroxyethylidene diphosphonic acid was prepared by phosphorus trichloride ,acetic acid with water.

用三氯化磷、冰醋酸和水合成了羟基乙叉二膦酸。

The oleoyl chloride was prepared by the reaction of phosphorus trichloride and oleic acid.

通过油酸和三氯化磷反应制备了油酰氯，再用油酰氯与谷氨酸单钠盐反应制备了目标产物油酰-L-谷氨酸。

Diethylphosphite was prepared from ethanol and phosphorus trichloride at mole ratio of 3.3:1 with the droping temperature at 5-10℃, and reacted under room temperature.

以无水乙醇和三氯化磷为3.3：1的投料量，5～10℃下滴加，室温下反应，制备亚磷酸二乙酯。

Antioxygen 168 schemical name is tri (2, 4-di-butylphenyl)sulfite ester, which is made from 2, 4-di-butyl phenol and phosphorus trifluoride .

抗氧剂168化学名称为三(2，4-二叔丁基苯基)亚磷酸酯，由2，4-二叔丁基苯酚与三氯化磷反应制得。

Spiral Spirobifluorene acetylated is oxidated by m-chloroperoxybenzoic acid and hydrolyzed by sodium hydroxide ,obtaining 2,2 '- dihydroxy -9,9'- spiral Spirobifluorene .Through nitrification,Reduced by hydrazine hydrate, we may get the 2,2 '- diamino -9,9'- spiral Spirobifluorene which are characterizated by IR, 1H-NMR !

L-酒石酸和乙醇酯化得到酒石酸二乙酯，将保护羧基保护起来，然后用碘甲烷在2，3-位上两个甲基，得到2，3-二甲氧基-酒石酸二乙酯，再用氢氧化钠将其水解，得到2，3-二甲氧基-酒石酸，用五氯化磷将羧基酰化，得到2，3-二甲氧基- 1，4-丁二酰氯，经过与二环己胺反应，得到拆分配体2，3-二甲氧基–N，N，N'，N'-四环己丁二酰胺。

Azobis-4-cyanopentanoyl chloride was prepared by reaction of 4,4'-azobis-4-cyanopentanoic acid and phosphorus pentachloride.

采用4，4'-偶氮二（4-氰基戊酸）与五氯化磷反应制备了4，4'-偶氮二（4-氰基戊酰氯）。

Elimination of phosphorous pentachloride was accomplished utilizing conventional extraction techniques.

使用传统的萃取技术除去五氯化磷。

Methods:2-Hydroxy-4-methyl-3-nitropyridine was reacted with phosphorous pentachloride to give 2-chloro-4-methyl-3-nitropyridine.

以4-甲基-3-硝基-2-羟基吡啶为起始原料，与五氯化磷进行卤代反应制得4-甲基-3-硝基-2-氯吡啶。

F Some raw materials may not be acceptance tested by the firm because of the hazards involved; e.g., phosphorus pentachloride, sodium azide, etc.

一些原料并不可以接受检测，由于涉及污染；如五氯化磷，叠氮化钠，等。

Cycloserine was produced using L-serine methyl ester hydrochloride as raw material. L-serine methyl ester hydrochloride was chloridized with phosphorus pentachloride to afford 2-amino-3-chloride propanic acid methyl ester hydrochloride, which was cyclized with hydroxylamine in the presence of alkali to give cycloserine.

以L-丝氨酸甲酯盐酸盐为原料制备了环丝氨酸。L-丝氨酸甲酯盐酸盐和五氯化磷在氯仿溶剂中进行氯代反应生成2-氨基-3-氯丙氨酸甲酯盐酸盐，后者和羟胺在碱性溶液中发生环合反应得到环丝氨酸。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。