苯乙酮

A series of N-bonded donor-acceptor derivatives of phenothiazine containing benzene, anisole, pyridine, naphthalene, acetophenone, and benzonitrile as an electron acceptor was synthesized.

合成了一系列的N-10位取代的吩噻嗪给体受体化合物，这些受体包括苯、苯甲醚、吡啶、萘、苯乙酮和苯乙腈。

The study mainly aims at the optima composition and suitable technological conditions of stearoylbenzoyl-methane--one of theβ- diketone compounds prepared from methyl stearate and phenyl ethyl ketone under alkaline catalysts.

主要研究采用硬脂酸甲酯和苯乙酮在强碱类催化剂作用下制备β二酮化合物之一的硬脂酰苯甲酰甲烷的最佳配方和适宜的工艺条件。

The synthetic application of bromodifluoromethyl phenyl ketone was studied in this dissertation. It consists of two chapters.

中文摘要本论文对溴二氟苯乙酮在含氟化合物合成中的一些应用进行了探索，共分为两个部分：第一部分考察了溴二氟苯乙酮与羰基化合物的反应。

Study on an efficient process for the preparation of trifloxystrobin starting from 2-methylacetophenone bypartial oxidation,esterification,reaction with methoxyamine,bromization and condensation with 3'- acetophenone oxime.

以邻甲基苯乙酮为原料，经过高锰酸钾的碱性氧化，甲醇酯化，再与甲氧基胺盐酸盐肟化后，用N-溴丁二酰亚胺溴化，最后和间三氟甲基苯乙酮肟缩合得到目标产物肟菌酯。

In recent years, the new technology has been used in the synthesis of chalcone compounds, under the 343 K condition carrying on the response in the temperature. It takes benzaldehyde and acetophenone as raw material, BF4 as resolver and the hydrotalcite as the catalyst, the yield of chalcone can reach 98.5%. This method has some advantages including shorter reaction time, higher yield and simpler operation.

近年来查尔酮化合物的合成采用了新技术，是以苯甲醛和苯乙酮为原料，BF4作为反应溶剂，水滑石为催化剂，在温度为343 K的条件下进行反应，查尔酮产率可以达到98.5%，该法具有反应时间短、操作简便、收率高等优点。

1Five novel E-(4-β-D-allopyranosyloxyphenyl)-1-(4-substituted phenyl) propenone derivatives were designed and synthesized by the Claisen-Schimidt reaction with 4-substituted hypnone.

1与4-取代苯乙酮进行Claisen-Schimidt缩合，合成了五个未见文献报道的E-4-β-D-吡喃阿洛糖苷-苯乙烯基-4-取代苯酮衍生物。

Five chalcones were synthesized via the aldol condensation reaction of acetophenone or parasubstituted acetophenones with 1-phenyl-3-methyl-5-phenoxyl-pyrazol-4-aldehyde, which reacted with two kinds of hydrazine in glacial acetic acid under refluxing to give a series of bipyrazoline derivatives. In this synthetic course, glacial acetic acid is not only a solvent, but also a catalyzer.

以1-苯基－3-甲基－5-苯氧基－吡唑-4-甲醛为原料，与苯乙酮发生羟醛缩合，生成相应的查尔酮，再在冰醋酸中与不同的肼反应，高产率的合成出10种新的5位含1-苯基－3-甲基－5-苯氧基－吡唑基的吡唑啉类衍生物。

The main intermediates were detected during decomposition,such as acetic acid,oxalic acid,malonic acid,phenol,3-hydroxyhypnone,naphthalene,benzene sulfonic acid,phthalic acid,β-naphthalene etc . by ultraviolet-visiblespectroscopy,ion chromatographand gas chromatograph coupled with mass spectrophotometertechniques.The possible degradation pathway of Acid Orange Ⅱ was also speculated,that was,hydroxyl radical reacted with the azo linkage-bearing carbon of naphthol-ring,and the C—N cleaved,the azo-dye decolored and mineralized.

运用紫外光谱、离子色谱、色谱-质谱联用等方法，测定出酸性橙Ⅱ的主要降解产物有乙酸、乙二酸、丙二酸、苯酚、3-羟基苯乙酮、萘、苯磺酸、邻苯二甲酸、β-萘酚等，并依此推测酸性橙Ⅱ的降解机理，即羟基自由基攻击酸性橙Ⅱ分子上与萘环相连的C—N键，导致C—N键的断裂，进而染料脱色矿化。

Asymmetric reduction of prochiral ketone to these chiral alcohol s by active microbe cells is one of the most promising routes.

以4-氯苯乙酮为苯环上含卤素的芳香酮的模型底物，研究了活性酵母细胞在水相体系中催化该类芳香酮不对称还原合成相应手性醇的反应特性。

In search of novel pesticide leading compound with high bioactivity,thirty-five 4-chloro- phenyl methyl ketone oxime ether derivatives were designed and synthesized by the reaction of 2-substituted amino 4-chloro phenyl methyl ketone oxime with halohydrocarbon.

为寻找高活性的新农药化合物，通过2-取代氨基-1-对氯苯乙酮-1-肟与卤代烃反应，设计并合成了35个对氯苯乙酮肟醚衍生物，其结构均经核磁共振氢谱和元素分析确证。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新