Because of all these disvantages acetylchloride is used to react with absolute ethyl alcohol and synthesize ethyl acetate.

鉴于传统方法存在以上缺点,采用酰氯代替酸为原料,不使用任何催化剂,不加热,常温反应来酸酯。

Xanthoxylin was extracted from Zanthoxylum Bungeanum Maxim of Sichuan Hanyuan using absolute ethyl alcohol, ether, acetone and water as solvent.

采用无水醇、醚、丙酮及水溶剂,对四川汉源花椒了精油提取。

Isobornyl ethyl ether was prepared by the catalytic ethoxylation of camphene with ethyl alcohol in the presence of cation exchange resin fixed bed.

烯在阳离子交换树脂固定床催化下与醇反应生异菠基醚。

The synthesis of tridecane dicarboxylic acid diethyl ester with ethyl alcohol and tridecane dicarboxylic acid as reactants and cation exchange resin as catalyst had been studied.

以强酸性阳离子交换树脂为催化剂,十三碳二元酸与醇为原料十三碳二元酸二酯,考察了影响反应的因素。

The bitter melon saponin was extracted by transonogram-assisted using 70% ethyl alcohol, then was purified by macroporous resin, and the straight of bitter melon saponin was obtained.

建立了高效液相色谱法对苦瓜啤酒中功效分——苦瓜皂苷检测的方法。

Because of all these disvantages acetylchloride is used to react with absolute ethyl alcohol and synthesize ethyl acetate.

鉴于传统方法存在以上缺点,采用乙酰氯代替乙酸为原料,不使用任剂,不加热,常温反应来合成乙酸乙酯。

Xanthoxylin was extracted from Zanthoxylum Bungeanum Maxim of Sichuan Hanyuan using absolute ethyl alcohol, ether, acetone and water as solvent.

采用无水乙醇、乙醚、丙酮及水溶剂,对四川汉源花椒了精油提取研究。

Isobornyl ethyl ether was prepared by the catalytic ethoxylation of camphene with ethyl alcohol in the presence of cation exchange resin fixed bed.

莰烯在阳离子交换树脂下与乙醇反应生成异菠基乙醚。

The synthesis of tridecane dicarboxylic acid diethyl ester with ethyl alcohol and tridecane dicarboxylic acid as reactants and cation exchange resin as catalyst had been studied.

以强酸性阳离子交换树脂为剂,十三碳二元酸与乙醇为原料合成十三碳二元酸二乙酯,考察了影响反应的因素。

The bitter melon saponin was extracted by transonogram-assisted using 70% ethyl alcohol, then was purified by macroporous resin, and the straight of bitter melon saponin was obtained.

建立了高效液相色谱法对苦瓜啤酒中功效成分——苦瓜皂苷检测的方法。

Because of all these disvantages acetylchloride is used to react with absolute ethyl alcohol and synthesize ethyl acetate.

鉴于传统方法存在以上缺点,采用代替酸为原料,不使用任何催化剂,不加热,常温反应来合成酸酯。

Xanthoxylin was extracted from Zanthoxylum Bungeanum Maxim of Sichuan Hanyuan using absolute ethyl alcohol, ether, acetone and water as solvent.

采用无水醇、、丙酮及水溶剂,对四川汉源花椒了精油提取研究。

Isobornyl ethyl ether was prepared by the catalytic ethoxylation of camphene with ethyl alcohol in the presence of cation exchange resin fixed bed.

莰烯在阳离子交换树脂固定床催化下与醇反应生成异菠。

The synthesis of tridecane dicarboxylic acid diethyl ester with ethyl alcohol and tridecane dicarboxylic acid as reactants and cation exchange resin as catalyst had been studied.

以强酸性阳离子交换树脂为催化剂,十三碳二元酸与醇为原料合成十三碳二元酸二酯,考察了影响反应的因素。

The bitter melon saponin was extracted by transonogram-assisted using 70% ethyl alcohol, then was purified by macroporous resin, and the straight of bitter melon saponin was obtained.

建立了高效液相色谱法对苦瓜啤酒中功效成分——苦瓜皂苷检测的方法。

Because of all these disvantages acetylchloride is used to react with absolute ethyl alcohol and synthesize ethyl acetate.

鉴于传统方法存以上缺点,采用乙酰氯代替乙酸为原料,不使用任何催化剂,不加热,常来合成乙酸乙酯。

Xanthoxylin was extracted from Zanthoxylum Bungeanum Maxim of Sichuan Hanyuan using absolute ethyl alcohol, ether, acetone and water as solvent.

采用无水乙醇、乙醚、丙酮及水溶剂,对四川汉源花椒了精油提取研究。

Isobornyl ethyl ether was prepared by the catalytic ethoxylation of camphene with ethyl alcohol in the presence of cation exchange resin fixed bed.

莰烯子交换树脂固定床催化下与乙醇生成异菠基乙醚。

The synthesis of tridecane dicarboxylic acid diethyl ester with ethyl alcohol and tridecane dicarboxylic acid as reactants and cation exchange resin as catalyst had been studied.

以强酸性子交换树脂为催化剂,十三碳二元酸与乙醇为原料合成十三碳二元酸二乙酯,考察了影响的因素。

The bitter melon saponin was extracted by transonogram-assisted using 70% ethyl alcohol, then was purified by macroporous resin, and the straight of bitter melon saponin was obtained.

建立了高效液相色谱法对苦瓜啤酒中功效成分——苦瓜皂苷检测的方法。

Because of all these disvantages acetylchloride is used to react with absolute ethyl alcohol and synthesize ethyl acetate.

鉴于传统方法存在以上缺点,采用酰氯代替酸为原料,不使用任何催化剂,不加热,常温反应来合成酸酯。

Xanthoxylin was extracted from Zanthoxylum Bungeanum Maxim of Sichuan Hanyuan using absolute ethyl alcohol, ether, acetone and water as solvent.

采用无、醚、丙酮及溶剂,对四川汉了精油提取研究。

Isobornyl ethyl ether was prepared by the catalytic ethoxylation of camphene with ethyl alcohol in the presence of cation exchange resin fixed bed.

莰烯在阳离子交换树脂固定床催化下与反应生成异菠基醚。

The synthesis of tridecane dicarboxylic acid diethyl ester with ethyl alcohol and tridecane dicarboxylic acid as reactants and cation exchange resin as catalyst had been studied.

以强酸性阳离子交换树脂为催化剂,十三碳二元酸与为原料合成十三碳二元酸二酯,考察了影响反应的因素。

The bitter melon saponin was extracted by transonogram-assisted using 70% ethyl alcohol, then was purified by macroporous resin, and the straight of bitter melon saponin was obtained.

建立了高效液相色谱法对苦瓜啤酒中功效成分——苦瓜皂苷检测的方法。

Because of all these disvantages acetylchloride is used to react with absolute ethyl alcohol and synthesize ethyl acetate.

鉴于传统方法存在以上缺点,采用乙酰氯代替乙酸为,不使用任何催化剂,不加热,常温应来成乙酸乙酯。

Xanthoxylin was extracted from Zanthoxylum Bungeanum Maxim of Sichuan Hanyuan using absolute ethyl alcohol, ether, acetone and water as solvent.

采用无水乙醇、乙醚、丙酮及水溶剂,对四川汉源花椒了精油提取研究。

Isobornyl ethyl ether was prepared by the catalytic ethoxylation of camphene with ethyl alcohol in the presence of cation exchange resin fixed bed.

莰烯在阳离子交换树脂固定床催化下与乙醇应生成异菠基乙醚。

The synthesis of tridecane dicarboxylic acid diethyl ester with ethyl alcohol and tridecane dicarboxylic acid as reactants and cation exchange resin as catalyst had been studied.

以强酸性阳离子交换树脂为催化剂,十三碳二元酸与乙醇为成十三碳二元酸二乙酯,考察了影响应的因素。

The bitter melon saponin was extracted by transonogram-assisted using 70% ethyl alcohol, then was purified by macroporous resin, and the straight of bitter melon saponin was obtained.

建立了高效液相色谱法对苦瓜啤酒中功效成分——苦瓜皂苷检测的方法。

Because of all these disvantages acetylchloride is used to react with absolute ethyl alcohol and synthesize ethyl acetate.

鉴于传统方法存在以上缺点,采乙酰氯代替乙酸为原料,不何剂,不加热,常温反应来合成乙酸乙酯。

Xanthoxylin was extracted from Zanthoxylum Bungeanum Maxim of Sichuan Hanyuan using absolute ethyl alcohol, ether, acetone and water as solvent.

采无水乙醇、乙醚、丙酮及水溶剂,对四川汉源花椒了精油提取研究。

Isobornyl ethyl ether was prepared by the catalytic ethoxylation of camphene with ethyl alcohol in the presence of cation exchange resin fixed bed.

莰烯在阳离子交换树脂固定床与乙醇反应生成异菠基乙醚。

The synthesis of tridecane dicarboxylic acid diethyl ester with ethyl alcohol and tridecane dicarboxylic acid as reactants and cation exchange resin as catalyst had been studied.

以强酸性阳离子交换树脂为剂,十三碳二元酸与乙醇为原料合成十三碳二元酸二乙酯,考察了影响反应的因素。

The bitter melon saponin was extracted by transonogram-assisted using 70% ethyl alcohol, then was purified by macroporous resin, and the straight of bitter melon saponin was obtained.

建立了高效液相色谱法对苦瓜啤酒中功效成分——苦瓜皂苷检测的方法。

Because of all these disvantages acetylchloride is used to react with absolute ethyl alcohol and synthesize ethyl acetate.

鉴于传统方法存在以上缺点,采用乙酰氯代替乙酸为原料,不使用任剂,不加热,常温反应来合成乙酸乙酯。

Xanthoxylin was extracted from Zanthoxylum Bungeanum Maxim of Sichuan Hanyuan using absolute ethyl alcohol, ether, acetone and water as solvent.

采用无水乙醇、乙醚、丙酮及水溶剂,对四川汉源花椒了精油提取研究。

Isobornyl ethyl ether was prepared by the catalytic ethoxylation of camphene with ethyl alcohol in the presence of cation exchange resin fixed bed.

莰烯在阳离子交换树脂下与乙醇反应生成异菠基乙醚。

The synthesis of tridecane dicarboxylic acid diethyl ester with ethyl alcohol and tridecane dicarboxylic acid as reactants and cation exchange resin as catalyst had been studied.

以强酸性阳离子交换树脂为剂,十三碳二元酸与乙醇为原料合成十三碳二元酸二乙酯,考察了影响反应的因素。

The bitter melon saponin was extracted by transonogram-assisted using 70% ethyl alcohol, then was purified by macroporous resin, and the straight of bitter melon saponin was obtained.

建立了高效液相色谱法对苦瓜啤酒中功效成分——苦瓜皂苷检测的方法。

Because of all these disvantages acetylchloride is used to react with absolute ethyl alcohol and synthesize ethyl acetate.

鉴于传统方法存在以上缺点,采用乙酰氯代替乙酸为原料,不使用任何催化剂,不加热,常温反应来合成乙酸乙酯。

Xanthoxylin was extracted from Zanthoxylum Bungeanum Maxim of Sichuan Hanyuan using absolute ethyl alcohol, ether, acetone and water as solvent.

采用无水乙醇、乙醚、丙酮及水溶剂,对四川汉源花椒了精油提取研究。

Isobornyl ethyl ether was prepared by the catalytic ethoxylation of camphene with ethyl alcohol in the presence of cation exchange resin fixed bed.

莰烯在阳离子交换树脂固定床催化下与乙醇反应生成异菠基乙醚。

The synthesis of tridecane dicarboxylic acid diethyl ester with ethyl alcohol and tridecane dicarboxylic acid as reactants and cation exchange resin as catalyst had been studied.

以强酸性阳离子交换树脂为催化剂,十元酸与乙醇为原料合成十元酸乙酯,考察了影响反应的因素。

The bitter melon saponin was extracted by transonogram-assisted using 70% ethyl alcohol, then was purified by macroporous resin, and the straight of bitter melon saponin was obtained.

建立了高效液相色谱法对苦瓜啤酒中功效成分——苦瓜皂苷检测的方法。