
n. 肉桂酸,[有化] 肉桂酸鹽
This paper stu***d the relations between the branching degrees and photosensitivities, and the solvent resistance of cinnamate epoxy resins with branched chains.
本文對帶支鍊感光性環氧肉桂酸酯的支化度和感光度以及耐溶劑性能之間的關系進行了研究。
The ratio of cinnamate series ester flavors hold in cut tobacco is close to 100%, the transfer ratio of filter tip, mainstream smoke is relatively high after smoke.
肉桂酸酯系列單體在煙絲中的持留率接近100%,在抽吸後的主流粒相、濾嘴中的轉移率都相對較高。
This paper stu***s a ****** way of synthesizing food flavoring ofcinnamic acid esters by using phase transfer eatylist to catalyze sodium cinnamate and alkyl halided after reaction.
本文研究利用相轉移催化劑催化肉桂酸鹽與鹵代烷反應合成肉桂酸酯食用香料的簡便方法。
With sodium cinnamate and benzyl chloride as raw material, ***thylamine as catalyst, benzyl cinnamate was synthesized directly under normal pressure and microwave irradiation.
以肉桂酸鈉和*********為原料,*********作催化劑,采用微波輻射技術,在常壓下直接合成了肉桂酸苄酯。
Butyl cinnamate was synthesized from cinnamic acid and butyl alcohol using tungstosilicic acid as catalyst.
以鎢矽雜多酸為催化劑,通過肉桂酸和*********反應合成肉桂酸正丁酯。
Ethyl cinnamate was synthesized by esterification of cinnamic acid with ethanol in the presence of stannic chloride pentahydrate catalyst.
在五水************存在下,肉桂酸和乙醇發生酯化反應合成肉桂酸乙酯。
The synthesis of methyl cinnamate was performed by esterification of cinnamic acid and methyl alcohol in catalysis of potassium bisulfate under microwave irradiation.
采用微波輻射技術,以自制*********鉀為催化劑,由肉桂酸和甲醇直接酯化合成肉桂酸甲酯。
Results showed that the conversion of cinnamate acid were 95.5% and the performance of catalyst were stable.
結果表明,肉桂酸的轉化率可達95.5%,且催化劑的性能穩定。
Methyl cinnamate was synthesized in the presence of the catalyst of pentahydrate stannic chloride, and characterized by melt i ng point, elementary analysis and infrared spectrum.
在五水************催化下合成了肉桂酸甲酯,并用熔點、元素分析和紅外光譜進行了表征。
Result: the concentration of ethyl ρ-methoxy cinnamate and peak area showed a good linearity relationship, the average recovery was 98.7% with RSD 0.57%.
柱溫:室溫。結果:對*********桂皮酸乙酯濃度與峰面積呈良好的線性關系,平均回收率為98.7%,RSD為0.57%。
Objective: To establish the HPLC method for determination of the content of ethyl ρ-methoxy cinnamate in Qiyinneixiao paste.
目的:建立HPLC對奇應内消膏中山奈所含對*********桂皮酸乙酯含量分析方法。
The result shows that, hexadecyl trimethyl ammonium chloride is an effective catalyst and under the optimal condition, 86.0% yield of benzyl cinnamate can be obtained.
實驗結果表明,************三甲基氯化铵是一種有效的催化劑,在最佳反應條件下,産物收率可達86.0%。
We found this non-monotonic dependence on fluorinated poly(vinyl cinnamate) (PVCN-F) surface while non-fluorinated PVCN revealed a monotonic decrease of the pretilt angle with exposure.
我們發現這種在加氟聚*********肉桂酸(PVCN-F)表面預傾角與曝光的關系是非單調性的,而在無氟PVCN時顯示的關系是單調遞減的。
In this paper, the methyl cinnamate was synthesized from cinnamate acid and methanol by using strongly acidic ion exchange resin as catalyst.
以磺酸型陽離子交換樹脂為催化劑,由肉桂酸和甲醇合成了肉桂酸甲酯。
The invention discloses a preparation method of cinnamate derivates.
本發明公開了一種肉桂酸酯衍生物的制備方法。
Reduction of 3,4,5-tris(benzyloxy)cinnamate gave the final product 3,4,5-Tris(benzyloxy)cinnamyl alcohol in 92% yield.
選擇性地還原3,4,5-三苄氧基肉桂酸乙酯生成目标産物3,4,5-三苄氧基肉桂醇,産率為92%。
Synthesis of Cinnamate with the main spices used for food and cosmetics.
合成的肉桂酸酯主要用作食品和化妝品的香料。
Results The in vitro drug components included benzyl benzoate, benzyl cinnamate, 18norabietane and borneol etc.
結果體外方面,蘇安心鼻吸劑中含有肉桂酸苄酯、苯甲酸苄酯、冰片、18去松香烷等藥物成分;
Ethyl cinnamate can be used as a fixed essence incense and thickening agent used.
肉桂酸乙酯可用作香精的定香劑和增稠劑使用。
Olefins including cinnamate derivatives can perform cis-tran isomerization through directly irradiation or photosensitized by triplet-state photosensitizer.
包括肉矽酸在内的烯烴可以直接經光照也可經三重态敏化劑敏化後發生順反異構化。
n.|cinnamic acid;[有化]肉桂酸,肉桂酸鹽
cinnamate(肉桂酸鹽/酯)是肉桂酸(cinnamic acid)的共轭堿或酯類衍生物,化學式為$ce{C9H7O2^-}$,常見于天然産物和工業應用中。以下是詳細解釋:
化學結構與性質
cinnamate由苯丙烯酸脫去質子或與醇發生酯化反應形成,其結構包含苯環與丙烯酸基團共轭。這種共轭體系賦予其紫外線吸收特性,常見于防曬劑成分中(來源:美國化學會)。
天然來源
天然cinnamate廣泛存在于植物中,例如肉桂樹皮、香草豆和羅望子。研究顯示,部分植物通過代謝産生cinnamate作為防禦次生代謝物(來源:自然科研期刊)。
工業與醫藥應用
生物活性與安全性
實驗表明,cinnamate衍生物具有抗氧化和抗菌活性,但其光敏性需謹慎評估。世界衛生組織(WHO)建議控制化妝品中cinnamate的濃度以降低過敏風險(來源:世界衛生組織)。
通過以上多領域研究可見,cinnamate的化學特性與廣泛用途使其成為工業和科研的重要研究對象。
"cinnamate" 是一個化學領域術語,具體含義和用法如下:
cinnamate 指肉桂酸(cinnamic acid)的鹽、酯或陰離子形式。在法語中,它對應為 cinnamate,意為“肉桂酸鹽”。
搜索結果未明确提及具體用途,但結合化學常識可知,此類化合物常用于:
cinnamate 是肉桂酸的衍生物,主要形式為鹽或酯類,廣泛應用于工業和科研領域。具體語境中的含義需結合化學結構或具體化合物名稱進一步确認。
【别人正在浏覽】