The concentration-time reaction for both final and intermediate products, and the effects of reaction parameters on degree of conversion and quantum yield are calculated.
给出终态产物和中间产物的时间演化以及各种参数对转变率及量子产率的影响。
Lactide is the intermediate for preparing of polylactic acid from lactic acid. The yield of lactide is the key factor to influence the extensive production and low the cost of polylactic acid.
丙交酯是以乳酸为原料制备高分子量聚乳酸的中间体，因此丙交酯的收率是影响聚乳酸大规模生产及其生产成本的关键因素。
The first and most recent development is the steepening of the U. S. Treasury yield curve and the rise of intermediate and long-term bond yields.
第一种方法，同时也是最近发展趋势，是让美国国债的收益率曲线变陡，提高中期以及长期债券的收益率。
This will allow a maximum yield of the react intermediate which is the desired product.
这样可以得到最高产率的反应中间物，即目的产物。
The synthesization has short route and mild reaction condition; and the produced intermediate and final product has high yield and high purity.
该合成路线短，反应条件温和，所得中间体、最终产物的产率高、纯度高。
The synthesis of 2_Chlorobenzolthiazole, which can be used as intermediate in the manufacture of herbicide named as Mefenacet with high yield and purity, was reported in this paper.
以苯并噻唑为原料，通过工艺研究，合成了生产化学除草剂苯噻草胺的中间体2 -氯代苯并噻唑，分析实验结果表明，反应收率高，产物纯度高。
Results The key intermediate 4 for the synthesis of febuxostat was synthesized via a four-step procedure in a total yield of 22.6% and its structure was confirmed by 1H-NMR and ESI-MS.
结果经四步反应合成非布司他关键中间体4，总收率为22.6%，其结构经核磁共振氢谱、质谱确证。
The intermediate tillers could increase grain number per ear by over 5.44% at the same planting density. This indicates that it has a great potential for increasing yield.
在相同密度条件下，利用中位蘖栽培，能提高每穗粒数5．44％以上，表现出具有较大的增产潜力。
Result and conclusion The intermediate is obtained in an overall yield of 72.4% according to new process, and the operation is simplified.
结果与结论新工艺简化了操作、缩短了反应时间，总产率达到了72·4%。
This will allow a maximum yield of the reaction intermediate which is the desired product.
这样可以得到最高产率的反应中间物，即目的产物。
The yield of the modified intermediate synthesis was from 20% to 36.7%.
以经过改进后的中间体进行合成三氯苯达唑，最终产率达到了36.7%。
The other intermediate of dyes, 2-amino-5-nitrophenol, was prepared by nitration and hydrolyze starting from benzooxozolenone. The total yield is over 70% and the purity 98.8% by the analysis of HPLC.
以苯并恶唑酮为原料，经混酸硝化、加压水解两步反应合成了2-氨基-5-硝基苯酚，总收率达70％以上。
The other intermediate of dyes, 2-amino-5-nitrophenol, was prepared by nitration and hydrolyze starting from benzooxozolenone. The total yield is over 70% and the purity 98.8% by the analysis of HPLC.
以苯并恶唑酮为原料，经混酸硝化、加压水解两步反应合成了2-氨基-5-硝基苯酚，总收率达70％以上。
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