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- guaiacyl phenylacetate 苯乙酸愈疮木酯
- It is also known that sodium ethylate and diethyl phenylmalonate interact together to give ethyl Phenylacetate and diethyl carbonate. 众所周知,乙醇纳和二乙基苯基丙二酸酯反应可以得到乙基乙酸苯酯和二乙基碳酸酯。
- There were more carboxyl groups condensed guaiacyl units and guaiacyl primary alcohol in the waste ASP liquor than those in KP waste liquor. 与KP相比,ASP废液中木素含有较多的羧基、缩合型愈创木基结构以及愈创木酚型的伯醇醚.
- Results:Using Laurate alcohol ester phenylacetate partly instead of sodium phenylacetate ca... 结论:苯乙酸月桂醇酯可作为青霉素发酵的前体应用,效果更好。
- Conclusion: A-LAK could be simply prepared by using PME, and have the synergistic anti-tumor effect with phenylacetate. 结论:采用PME可简便快速地制备A-LAK,而苯乙酸可与A-LAK协同发挥抗瘤作用。
- The spectrum showed that BSL was composed mainly of syringl (S), guaiacyl(G) and p-hydroxylphengl (H) units, and the ratio of three uncondensed group (S:G:H)was 2. 图谱分析表明,蔗渣碱木素主要由紫丁香基,愈创木基和对羟苯基三种丙烷结构单元组成,其中未绩合的紫丁香基、愈创木基和对羟羊基含量比为2。
- The result indicated that, the purified lignin was composed of syringyl (S) and guaiacyl (G) units, they were bound mainly through ester linkage and C-C bonds. 结果表明,造纸黑液纯化木素主要由紫丁香基单元和愈疮木基单元两种结构单元组成,其结构单元间主要是通过醚键和C-C键连接在一起;
- The phenylacetyl ethanolamine,a low toxic precurson of benzylpenicillin,was synthesized by using ethyl phenylacetate and colamine as raw materials. 以苯乙酸乙酯和乙醇胺为原料合成了苄青霉素低毒前体苯乙酰基乙醇胺。
- Objective: To study effect of Laurate alcohol ester phenylacetate as precursor on thallus itself and fermentation unit in penicillin fermentation process. 目的:研究苯乙酸月桂醇酯作为前体对青霉素发酵过程中菌体本身和发酵单位的影响。
- Methods: In shaking flask test, We used Laurate alcohol ester phenylacetate as precursor and supplementary material instead of sodium phenylacetate used in former process. 方法:在摇瓶试验中用苯己酸月桂醇酯代替原工艺所用苯乙酸钠作为前体及补料用,在相同条件下与原工艺对照比较,进行考察研究。
- A process for the preparation of anticholinergic drug Cyclopentolate Hydrochloride by two-step sequence starting from sodium Phenylacetate in about 50% total - yield was reported. 探索抗胆碱药盐酸环喷托酯的合成工艺。该工艺以苯乙酸钠为原料,经两步化学反应得到目标产品,总产率约50%25。
- The results showed that during the chemical pretreatment the guaiacyl unit was more readily to be sulfonated and dissolved, and there were new conjugated carbonyl and quinoid structure formed. 结果表明,预处理过程中愈创木基易于磺化和溶出,木素中有新的共轭羰基和醌型结构产生。
- Objective: To improve the preparation of adherentlymphokine-activated killer cells (A-LAK cells) and to study the synergistic anti-tumor effect of phenylacetate(PA) and A-LAK cells. 目的:简化粘附性LAK(A-LAK)细胞的制备方法并观察其与苯乙酸(PA)的协同抗瘤作用。
- The effects of phenylacetate acid/isobutyl alcohol molar ratio,the amount of sodium bisulfate monohydrate catalyst used and reaction time on the yield of isobutyl phenylacetate were investigated. 以冰醋酸、异丁醇为原料,对甲苯磺酸为催化剂合成乙酸异丁酯,通过正交实验考察了原料比、催化剂用量、带水剂用量和反应时间等因素对反应的影响。
- anisylidene para-amino phenylacetate 甲氧苄叉-对氨基醋酸苯酯
- Laurate alcohol ester phenylacetate 苯乙酸月桂醇酯
- Ethyl phenylacetate was synthesized based on phenylacetic acid and ethanol via the technique of high pressure microwave irradiation and Nd2O3 (purity is 99. 以苯乙酸和乙醇为原料;高纯氧化钕(99.;0%25)为催化剂;利用高压微波辐射技术合成了苯乙酸乙酯。
- (2)The high purity of guaiacyl lignin in Douglas fir fiber. 而且花旗松纤维的愈创木基木质素含量较高。
- The synthesis of methyl phenylacetate with methanol and phenylacetic a cid as reactants and SO 2- 4/TiO 2/La 3 + rare-earth solid superacid as catalyst had been studied. The influence factors of the reaction were investigated. 本文以稀土固体超强酸SO2 - 4/TiO2 /La3 + 为催化剂 ,苯乙酸和甲醇为原料合成了苯乙酸甲酯 ,考察了影响反应的因素。
- The focal development of benzyl chloride carbonylation on synthesis process and phenylacetic ester on downstreams products was put forward, and the export of phenylacetate should be expanded. 建议在合成工艺上着重发展氯苄羰基化,在下游产品方面着重发展苯乙酸酯,并扩大苯乙酸的出口。