反应率

The influence factors on the yield of isobutyl salicylate were discussed.

以对甲苯磺酸为催化剂，通过水杨酸和异丁醇酯化反应合成水杨酸异丁酯，研究了各有关因素对产品酯化率的影响。

Isobutyl butyrate was synthesized from butyric acid and isobutyl 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。

By treatment of (4R)-carboxy-(2S)-phenylthiazolidine with isocyanic acid benzyl ester in CH_3COOH/(CH_3CO)_2O system,the reaction time is shortened from 17 h to 3 h,and the yield of (7aR)-3-phenyl-1H,3H-imidazo[1,5-c] thiazole-(6H, 7aH) 5,7-dione is raised from 75% to 93%.

改用异氰酸苄酯为关环试剂环化合成了(7aR) 3 苯基 6 苄基 1H，3H 咪唑并[1，5 c]噻唑 5，7 二酮，选用CH3COOH/(CH3CO)2O代替CH3COOH作溶剂，反应时间由17h缩短为3h，产率从75%提高到93%。

The reaction of chiral isocyanide with N-sulfonylimine catalyzed byRh complex gave 2-imidazoline in 68 - 82% diastereoselectivity.

本论文由五部分组成·在没有任何酸，碱和催化剂存在下， N-磺酰亚胺与异氰乙酰胺反应，以60-94％的产率生成1，3-恶唑。1，3-恶唑的结构由X-ray分析测定。

This algorithm was applied to a typical epoxy polymeric network based on diglycidyl ether bisphenol A and isophorone diamine, obtaining a highly crosslinked infinite network model with the conversion up to 93.7%.

将其应用到异佛尔酮二胺固化双酚A二缩水甘油醚得到的聚合物，产生了一个高度交联无限扩展的聚合物网络模型，其反应转变率达到了93.7%。

The condensation reaction of levulinates with ethylene glycol brings about corresponding ketal , with respective productivity of 74%, 75% and 75%, and respective structure being verified by IRS.

由乙酰丙酸酯类化合物与乙二醇进行缩合反应，得到相应的环状缩酮化合物，产率分别为 74 %，75 %和 75 ，其结构为红外光谱所证

Cyclohexanone ethylene ketal was synthesized using vitamin C as the catalyst by microwave irradiation solvent-free method.

以维生素C为催化剂，采用微波辐射无溶剂催化合成环己酮乙二醇缩酮，探索了不同反应条件对产率的影响。

The results showed that Lactarius camphorates, which could inhibit HIV-1 PR by 80.9%, was the only sample exhibited over 80% inhibition on PR at 0.5mg/ml.

在已测的22种食用菌多糖复合物对HIV-1 PR的抑制活性实验中，反应浓度为0.5mg／ml下对蛋白酶抑制活性最高的是香乳菇，其抑制率达80.9％。

To avoid over-estimating capacity, this study divides production scheduling horizon into many small segmented buckets. To reflect the time-varying property of demands, this study decides initial production order by using "run out time of the inventory" proposed by Leachman.

为了反应需求率随时间改变的特性，将生产时期以避免高估产能的方式分割为数个分割时段，依据Leachman所提出的存货耗尽时间成本决定起始生产顺序。

The effects of technological conditions of different temperatures,sulfuric acid concentration,particle size,liquid/solid ratio and reaction time on levulinic acid yield were investigated,respectively.

分别考查了不同温度、硫酸浓度、原料粒度、液固比和反应时间对小麦秸秆转化乙酰丙酸产率的影响。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。