丙酮

Tebufenpyrad, a new high effective pyrazoleamide acaricide , was synthesized from 1-methyl-3-ethyl-4-chloro-5-pyrazolecarbon acid and 4-t-butylbenzylamine, the raw material are propionyl pyruvic ethyl ester and 4-t-butyl benzylchloride.

吡螨胺是一种新型、高效的吡唑酰胺类杀螨剂，本文以中间体1-甲基-3-乙基-4-氯-5-吡唑甲酸和4-叔丁基苄胺合成，起始原料丙酰丙酮酸乙酯和4-叔丁基苄氯，总收率为61.23%。

The pyretic acid formed by GLYCOLYSIS is broken down into acetaldehyde and carbon dioxide.

糖酵解过程中产生的丙酮酸分解为乙醛和二氧化碳。

When the volumetric ratio of medium to flask was 0.20 and the corn steep liqud concentration was 8g/L, there have high yield of pyruvate and lactate produced at growth phase, 4.1g/L and 1.0g/L, respectively, which are ...

在装液比为 0 2和玉米浆浓度为 8g L时，丙酮酸和乳酸在细胞生长期可分别积累达 4 1g L和 1 0g L ，比正常发酵时增加 2倍以上，丙三醇产率也低；然而，装液比为 0 0 8和玉米浆浓度为 4g L时，丙酮酸和乳酸产生较低，丙三醇产率较高，但乙酸积累比供氧不足时高，可达 2 6g L。

The invention uses the industry byproduct in production of sulfonation-process phenol or the byproduct (Na2SO3 content is 60-85percent) in production of p-cresol and sodium hydrosulfite to produce the aliphatic high range water reducer and takes acetone, formaldehyde, industry byproduct, sulphite or sodium pyrosulfite as raw materials and then sulfonation and condensation reactions are carried out in aqueous medium, the reactant weight ratio is acetone: formaldehyde: sulphite plus industry byproduct: water is equal to 1:2.5-4.5:1.5-2.6:4.0-6.0, the mass concentration of the condensation compound obtained is 30-42 percent, and the viscosity thereof is 20-100m.

本发明利用磺化法苯酚生产中的工业副产品，或者对甲酚和保险粉生产过程中副产品(Na 2 SO 3 含量在60～85％)生产脂肪族高效减水剂，采用丙酮、甲醛、工业副产物、亚硫酸盐和或焦亚硫酸钠作为原材料，在水介质中进行磺化和缩合反应，反应物的质量比为丙酮∶甲醛∶亚硫酸盐副产品∶水＝1∶2.5～4.5∶1.5～2.6∶4.0～6.0，所得到的缩合物的质量浓度为30～42％，粘度为20～100m。

Extracting oat oil with aceton,petrobenzine,ethano-aceton and n-hexne from oat,determining quality of physical and chemic about acidity value ,iodic value,saponification value,unsaponification,colour and melting point,analysis on composition of fatty acid on oat oil.

分别以乙醚、丙酮、丙酮-乙醇、正己烷对燕麦进行萃取，对所得油脂进行酸价、碘价、皂化值、不皂化物、色泽、熔点等理化性质的测定，同时对燕麦油的脂肪酸组成进行分析。

Propionate sodium ; pyruvate sodium ; pyruvate carboxylase gene ; mRNA level ; competitive RT-PCR ; bovine hepatocyte

丙酸钠；丙酮酸钠；丙酮酸羟化酶基因； mRNA水平；竞争RT-PCR ；牛肝细胞

Key words: propionate sodium; pyruvate sodium; pyruvate carboxylase gene; mRNA level; competitive RT-PCR; bovine hepatocyte

丙酸钠；丙酮酸钠；丙酮酸羟化酶基因；mRNA水平；竞争RT-PCR；牛肝细胞

The Pd-supported catalyst on MCM-22 synthesized by static method shows a higher acetone conversion than that prepared by dynamic method in one-step synthesis of methyl isobutyl ketone from acetone.

在丙酮一步法合成甲基异丁基酮反应中，静态条件下合成的MCM-22为载体的催化剂的丙酮转化率较高，这是由于该分子筛的酸量较高所致。

4Production of chemical products from which narcotics are easily made ephedrine, 3, 4-idene dihydro phenyl -2-acctonc, phenyl acetic acid, 1- phenyl -2-acetone, heliotropin, safrole, isosafrole, acetic oxide

易制毒化学品生产（麻黄素、 3 ， 4-亚基二氧苯基-2-丙酮、苯乙酸、 1-苯基-2-丙酮、胡椒醛、黄樟脑、异黄樟脑、醋酸酐

Fructose 1,6-bisphosphatase is stimulated ang gluconeogenesis is inhibited in the fed animal and vice versa ,during starvation .

在肝脏 ，ATP 和丙氨酸抑制丙酮酸激酶而 ADP 抑制丙酮酸羧化酶和 PEP 羧激酶。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。