查询词典 cinnamate

Benzyl cinnamate ; phase transfer catalyst ; synthesis

肉桂酸苄酯；相转移催化剂；合成

Comprehensive data showed: the preservation results of potassium cinnamate which was added in pickles is 10-20 times of Sodium benzoate and 5-10 times of Potassium sorbate under no vacuum-packed.

综合数据显示：无真空包装下，肉桂酸钾对酱腌菜的防腐保鲜效果一般为苯甲酸钠的10-20倍，为山梨酸钾的5-10倍左右。

The paper is mainly comparated the preservation effects of three preservatives in pickles under the premise of no vacuum-packed, adding 0.05% of Sodium benzoate、0.05% of Potassium sorbate and different concentrations of potassium cinnamate in pickles, then put them into the box with constant temperature and humidity(T=35℃,R=90%) to speed up the experiment which was respectively packed in non-sterile and sterilization state.

本文主要研究无真空包装的前提下，在酱腌菜中添加0.05%的苯甲酸钠、0.05%的山梨酸钾和不同浓度的肉桂酸钾，分别在非灭菌和灭菌的条件下，将其放入恒温恒湿箱内（T=35℃、R=90%）进行加速实验，对比三种防腐剂对酱腌菜的防腐保鲜效果。

Methods: The effects of the ratio of reactants, the amount of the catalyst used, the reaction time and the amount of an water-taking agent on synthesizing isoamyl cinnamate were investigated to obtain a suitable condition for synthesizing the ester.

考察了醇酸比、反应时间、带水剂用量等因素对合成肉桂酸异戊酯的影响，得到合成该酯的较适宜条件。结果：最佳反应条件为n：n=5：1，催化剂用量为肉桂酸用量的20%，反应时间2h，反应温度110～118℃，酯收率可达76.6%。

The tattle unifies in recent years study on the synthesis of cinnamate of the status quo and application prospect,the use of activated carbon as carrier of phosphotungstic heteropoly acid catalyst for catalytic synthesis of cinnamic acid ester had a preliminary inquiry,and the results were satisfactory.

中文摘要：本文结合近几年合成肉桂酸酯的研究现状及应用前景分析，采用磷钨杂多酸作催化剂活性炭为载体催化合成肉桂酸系列酯进行了初步探究，并且结果令人满意。

The electrochemical reduction and carboxylation of ethyl cinnamate have been carried out in an undivided cell equipped with a Mg sacrificial anode using MeCN as solvent.

在一室型电解池中，以MeCN为溶剂，Mg为牺牲阳极，成功地实现了肉桂酸乙酯的电化学还原和羧化。

Combined Sensory inspection, Colony counting and E. coli counting, we found that: mixed-Potassium cinnamate had clear preservation results in pickles, when the content was 0.2% under sterilization, only slightly dark color of the phenomenon after saving 84d, and texture, taste and smell of pickles were not significantly changed.

结合感官检查、菌落计数和大肠杆菌计数发现：肉桂酸钾对酱腌菜有明显的防腐保鲜效果，且在灭菌条件下添加量为0.2%时，保存84天仅有轻微颜色发暗的现象，酱腌菜的质地、口感和气味均无明显的变化。

To the chromium layer of each glass strip a 5 percent by weight solution in methylglycol acetate of polyvinyl cinnamate containing 0.1 percent by weight of Michler's ketone and having a viscosity of 4 cps was applied.

到每个玻璃铬层地带的重量，含0.1聚氯乙烯百分之由基米氏酮的重量，而有了4肉桂methylglycol准则粘度醋酸溶液1百分之五的应用。

Wuhan Yuancheng Technology Development Co., Ltd.Abstract: The paper is mainly comparated the preservation effects of three preservatives in pickles under the premise of no vacuum-packed, adding 0.05% of Sodium benzoate、0.05% of Potassium sorbate and different concentrations of potassium cinnamate in pickles, then put them into the box with constant temperature and humidity(T=35℃,R=90%) to speed up the experiment which was respectively packed in non-sterile and sterilization state.

本文主要研究无真空包装的前提下，在酱腌菜中添加0.05%的苯甲酸钠、0.05%的山梨酸钾和不同浓度的肉桂酸钾，分别在非灭菌和灭菌的条件下，将其放入恒温恒湿箱内（T=35℃、R=90%）进行加速实验，对比三种防腐剂对酱腌菜的防腐保鲜效果。

The investigation of the catalytic activity and stereoselectivity of ligand 10 was also carried out under another standard set of K〓Fe 〓 conditions (〓/ligand/substrate=0.002: 0.01: 1). The AD reaction of seven olefins gave corresponding diols in 72～99% yield (except for ethyl cinnamate, 48%) and 91～99% ees, which was comparable to those obtained from the reactions using the commercial ligand 〓PHAL.

将单季铵盐手性配体10用于AD反应的另一个催化体系〓BuOH-H〓O/K〓Fe〓中考察其催化活性和立体选择性，在七种烯烃的AD反应中，〓、配体与底物的摩尔比为0.002：0.01：1时，化学产率为72～99％（肉桂酸乙酯除外，为48％），ee值为91～99.9％，与商品配体〓PHAL的催化结果相当。

It seems likely that Kraft will return with a better offer.

看起来卡夫要重新考虑一个更好的出价了。

But he'd rather burn off my feelers and watch me squirm.

可他却放任那个家伙对我为所欲为！