丁酮

The electrochemical behavior of benzalacetophenone has been studied in MeCN.

在此条件下恒电位电解，2，4-二苯基-4-丁酮酸的产率可达88%。

Ethoxycarbonyl-4,5-dimethyl-pyrrole (7) was prepared from ethylacetoacetate, ethyl formate and methyl ethyl ketone via oximination, Claisen condensation, and reductive condensation. The bromization of compound 7 gave 2-ethoxycarbonyl-3-bromo-4,5-dimethyl-pyrrole(8), which could be transferred to 2-ethoxy-carbonyl-3-brome-4-methyl-5-formyl-pyrrole (9) by the formolation.

由乙酰乙酸乙酯、甲酸乙酯及丁酮等原料经过肟化、Claisen缩合、还原缩合成环得到2-乙氧羰基－4，5-二甲基－吡咯(7)，溴化生成2-乙氧羰基－3-溴4，5-二甲基－吡咯(8)，最后经过甲酰化反应得到目标产物2-乙氧羰基－3-溴－4-甲基－5-甲酰基－吡咯(9)。

Using two fresh upper limbs of adult, the ABS casts of the fine vasculature about the skin, superficial and deep fascia of thenar and hypothenar were studied by scanning electron microscopy.

本文用2侧成人新鲜尸体上肢，经肱动脉灌注ABS丁酮溶液，制成铸型样品，喷镀金膜。在扫描电镜下，观察了手鱼际和小鱼际皮肤及浅、深筋膜微细血管的立体构筑。

The side chain of thioacetic acid has been sythesized from the material of acetic acid via four steps, then synthesized the key intermediate of 2-hydroxypenem via displacement, P〓induced cyclization and hydrolyzed reaction from the material of azetidinone.

以羟乙酸为原料，经四步反应合成了侧链化合物硫基取代的羟乙酸，发生取代反应导入到经七步合成的单环氮杂环丁酮中，然后发生酰化，Wittig诱导环化，水解等五步反应合成关键中间体2-羟甲基青霉烯。

White gas, banana oil, Thinner, Coating thinner, Paint thinner, toluene, xylene, acetone, ethane, heptane, carbinol, MEK, IPA, trichloroethylene ,Tetrachloroethylene , ethyl alcohol

白电油、香蕉水、天那水、涂料稀释剂漆油稀释剂甲苯二甲苯丙酮乙烷庚烷甲醇丁酮异丙醇三氯乙烯四氯乙烯酒精等有机溶济。

And in contrary, aniline has the intensive association tendency. Thisbehavior is believed to some degree to be related to the nature of solvated segments.

但仍可看到含氯的溶剂(1，2－二氯乙烷和氯仿)以及丁酮的〓较低，而含氮的溶剂的〓则较高，可认为它在一定程度上反映了溶剂化链段的特性。

Acetone and methyl ethyl ketone does have a strong solubility, due to solvent inks are pigment dispersant through a combination of bond and bond formation of throwing power, and too strong solvents will destroy this balance, resulting in pigment dispersion instability precipitation, the ultimate plug nozzle.

丙酮和丁酮确实有很强的溶解性，由于溶剂墨水中的颜料是被分散剂通过键与键的结合形成分散能力的，过强的溶剂会破坏这种平衡，造成颜料分散的不稳定，产生沉淀，最终堵塞喷头。

The cyclic voltammetric behavior of the organic phase at the liquid/liquid interface has been studied with a classic three-electrode system.

利用吡咯烷二硫代氨基甲酸铵作为螯合剂，甲基异丁酮作为萃取剂，将水相中的Pb2+萃取到有机相中，利用经典的三电极系统研究该有机相在液/液界面的伏安特性。

The results showed when the weight ratio of linseed oil to rosin was less than 1.2, the product with following characters could be prepared i.e. molecular weight (averageM 6000~10000, PDI less than 4, n-heptane tolerance in the range of 5~20mL/2g, softening point more than 110℃ and good solubility in mineral oil, vegetable oil, aromatic hydrocarbon, MEK and ethyl acetate and so on. The product might be a new polymer for manufacturing rotary printing inks.

实验表明：m：m＜1.2时，所得产品分子量(平均值M6000~10000，分子量分布范围，庚烷容纳度在5~20mL/2g，软化点＞110℃，可溶于矿物油、植物油、芳香烃、丁酮和乙酸乙酯等溶剂中，是轮转油墨用的一种新型高分子聚合物。

The paper introduced that VOCs exhaust gas in packing printing house was treated by FCJ organic gas purification equipment,which is based on adsorption and catalytic combustion principle.

前言包装印刷厂的主要产品为各种塑料薄膜的印刷制品，在产品生产中大量使用彩色油墨和有机稀料，油墨用的稀料主要是甲苯、乙酸乙酯及少量丁酮。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。