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- phenylethyl cinnamate 桂酸苯乙酯
- They were good catalyst for synthesis of n-butyl cinnamate. 它们是催化合成肉桂酸正丁酯的良好催化剂。
- Manufacture of Phenyl and Phenylethyl Malonic Esters. 苯基和苯基乙基丙二酸酯的生产。
- Amyl cinnamate was synthesized from cinnamic acid and amyl alcohol using tungstosilicic acid as catalyst. 以钨硅酸为催化剂,通过桂酸和戊醇酯化反应合成桂酸戊酯,研究了各有关因素对产品酯化率的影响。
- The main component was methoxy-ethyl cinnamate with content of 40.96%, next was ethyl cinnamate with content of 23.68%. 主要成分是对甲氧基肉桂酸乙酯,含量为40.;96%25;其次是肉桂酸乙酯,含量为23
- Ethyl cinnamate was prepared by one-pot method from 1,3,3,3-tetrachloropropylbenzene with 85.2% yield. 以1;3;3;3-四氯两基苯一锅煮方法制备肉桂酸乙酯;收率达到85.;2%25。
- Butyl cinnamate was synthesized from cinnamic acid and butyl alcohol using tungstosilicic acid as catalyst. 以钨硅杂多酸为催化剂,通过肉桂酸和正丁醇反应合成肉桂酸正丁酯。
- The affects of catalyst amount, molar ratio of phenylethyl alcohol and iso-valeric acid, reaction time and dehydrating agent amount were studied. 研究了催化剂用量、载体二甲苯用量、醇酸比例以及反应时间对反应结果的影响。
- Results showed that the conversion of cinnamate acid were 95.5% and the performance of catalyst were stable. 结果表明,肉桂酸的转化率可达95.5%25,且催化剂的性能稳定。
- The main component was methoxy-ethyl cinnamate with content of 40.96%,next was ethyl cinnamate with content of 23.68%. 主要成分是对甲氧基肉桂酸乙酯;含量为40.;96%25;其次是肉桂酸乙酯;含量为23
- Synthesis methods for natural anticancer drug caffeic acid phenylethyl ester were reviewed and their advantages and disadvantages were described with 55 references. 介绍了天然抗癌药咖啡酸苯乙醇酯的各种化学合成方法,并评价了其优缺点。参攷文献55篇。
- Abstract: Using sulfamie acid as catalyst, synthesis of benzyl acetate and phenylethyl acetate through esterification were studied. The yields are good with high purity. 文摘:研究了氨基磺酸催化酯化合成乙酸苄酯和乙酸苯乙酯。此工艺反应时间短、能耗低、产品纯度高、产率良好、无三废污染,优于文献方法。
- A new method of extracting cinnam aldehyde from Cinnamomum cassia Presl bark was put forward. 用少量乙醇溶液润湿肉桂皮,然后加入热水,使渗透到肉桂皮微孔内的乙醇溶液沸腾,强化提取过程。
- The results showed that the relative contents of fusel oil were decreased;the relative contents of total ester, total acid and phenylethyl alcohol increased after PEF treatment. 研究结果表明:经一定条件的高压脉冲电场处理后,葡萄酒中的杂醇油含量有所下降,总酸、总酯和苯乙醇的含量有所上升。
- Iso-butyl cinnamate was synthesized by the esterifiestion of iso-butanol with cinnamic acid with the presence of potassium bisulfate monohydrate. 应用硫酸氢钾催化肉桂酸与异丁醇的酯化反应,合成了肉桂酸异丁酯。
- Using sulfamic acid as catalyst, synthesis of benzyl acetate and phenylethyl acetate through esterification were studied. The yields are good with high purity. 研究了氨基磺酸催化酯化合成乙酸苄酯和乙酸苯乙酯。此工艺反应时间短、能耗低、产品纯度高、产率良好、无三废污染,优于文献方法。
- In this paper, the methyl cinnamate was synthesized from cinnamate acid and methanol by using strongly acidic ion exchange resin as catalyst. 以磺酸型阳离子交换树脂为催化剂,由肉桂酸和甲醇合成了肉桂酸甲酯。
- Using sulfamie acid as catalyst, synthesis of benzyl acetate and phenylethyl acetate through esterification were studied. The yields are good with high purity. 研究了氨基磺酸催化酯化合成乙酸苄酯和乙酸苯乙酯。此工艺反应时间短、能耗低、产品纯度高、产率良好、无三废污染,优于文献方法。
- It contains not less than 45.0 per cent m/m and not more than 70.0 per cent m/m of esters, mainly benzyl benzoate and benzyl cinnamate. 本品含酯类成分以安息香苯甲酯和桂皮酸苯甲酯计应为45.;0%25至70
- The latter has seven types,such as p-aminobenzoate derivatives cinnamate derivatives,and so on,which can absorb UVB and UVA efficiently,an... 它们已被广泛地应用于化妆品、护发品、织物处理及洗涤剂中。