缩酮

Acetone, cyclohexanone, formaldehyde and ethylene diamine were adopted to synthetise HLZ corrosion inhibitor by means of Mannich reaction.Then LZ-620 salts corrosion inhibitor was synthetised on HLZ condensating chloroacetic acid.

针对盐类腐蚀采用丙酮、环酮A、甲醛、乙二胺通过曼尼希反应生成缓蚀剂后再与氯乙酸缩合生成盐类缓蚀剂(LZ-620)。

Two series of polys and polys were synthesized by solution polycondensation of 4,4'-difluorodiphenyl sulfone and 4,4'-difluorobenzophenone, respectively, with various bisphenols in the presence of cesium fluoride.

二系列聚醚碸和聚醚酮分别由 4，4'-difluorodiphenyl sulfone 与 4，4'-difluorobenzophenone和五种不同之二酚在CsF的存在下经由溶液聚缩合法制得。

A series of pyrroles were synthesized from primary amine(including fatty amine and aromatic amine)and acetonyl-acetone through a Paal-Knorr reaction catalyzed by formic acid at room temperature under solvent-free conditions.

以甲酸为催化剂，无需使用任何溶剂，在室温条件下，多种伯胺与2，5-己二酮发生Paal-Knorr缩合反应，生成相应的吡咯衍生物。

Ring closure reaction of dodecene was first time carried out in ethanol buffered ionic liquids with high selectivity to cyclododecane.

首次在氯铝酸离子液体反应介质中，研究了醛和酮与甲醇的缩合反应。

It occurs at the carbon-carbon triple bond in a highl regioselective manner. Therefore, the reaction not only expanded the synthetic applications of Diels-Alder reaction but also provided a facile and efficient synthetic procedure for the synthesis of 4-functionalized quinoline derivatives.

上述反应实现不仅扩展了Diles-Alder反应在有机合成的应用，同时喹啉类化合物4-位上官能化的二硫缩烯酮基团也为其4-位取代打开了大门，为合成各种4-取代喹啉类化合物开辟了一个简洁高效的方法。

Acetone ; methyl isobutyl ketone ; base catalysis ; Aldol condensation

丙酮；甲基异丁基酮；碱性催化； Aldol缩合

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。