研究了由二丙二醇单烯丙基醚制得的不饱和聚酯树脂的风干性能。
The air drying property of unsaturated polyester resin prepared from dipropylene glycol monoallyl ether was studied.
二氧化双环戊二烯难于被胺或单独的酸酐所固化，但能很好的被酸酐与醇所固化。
Dicyclopentadiene dioxide was hardly cured by amines or acid anhydrides alone, but can be well cured by acid anhydrides mixed with alcohols.
最后我们选用异二丙胺锂（LDA）为碱，在干冰丙酮浴下，合成了烯醇磷酸酯，并有很高的立体选择性。
At last , we used the base: LDA, dry ice-acetone bath , to synthesize the enol phosphates and gain very high rigio-selectivity.
用二环戊二烯，顺丁烯二酸和乙二醇合成不饱和聚酯，这种不饱和聚酯既可浇铸，也可以在空气中固化。
An unsaturated polyester resin was synthesized from dicyclopentadiene, maleic acid and ethylene glycol. This resin can be moulded by casting and also can be hardened in air.
用二环戊二烯，顺丁烯二酸和乙二醇合成不饱和聚酯，这种不饱和聚酯既可浇铸，也可以在空气中固化。
An unsaturated polyester resin was synthesized from dicyclopentadiene maleic acid and ethylene glycol. this resin can be moulded by casting and also can be hardened in air.
它们是乙酸、苯甲醛、正葵酸、14-甲基十五烷酸甲酯、丙三醇、苯甲酸、6 ，9-十八碳二烯酸甲酯、角鲨烷、硬脂酸和二十烷基油酸酯。
They were acetic acid, benzaldehyde, n caproic acid, 14 methyl pentadecanoic methyl ester, glycerin, benzoic acid, 6,9 octadecadienoic methyl ester, squalane, stearic acid and oleic eicosyl ester.
本工作首次制备了醇改性负载钛催化剂，并将其用于丁二烯和异戊二烯配位聚合。
Supported titanium catalysts modified by alcohols were prepared for the first time, and the modified catalysts were used for the coordination polymerization of butadiene and isoprene.
某厂松脂加工过程中，产生炼脂松香废水、歧化松香废水和二氢月桂烯醇废水等三股高浓度废水。
Three kinds of high concentrated wastewater, pine gum processing effluent, disproportionated rosin-making effluent and citronellol-making effluent have been produced in some plants.
用一缩二丙二醇单烯丙基醚所制备的不饱和聚酯树脂的气干性能，并对有关影响因素作了研究。
The air drying property of unsaturated polyester resin prepared from dipropylene glycol monoallyl ether was studied, the related influential effects were discussed.
首先以茄尼醇合成全反式侧链四十碳十烯-1-醇，再和2，3-二甲氧基-5-甲基-1，4-苯醌的还原产物在无水氯化锌存在下缩合。
All - E long chain part was synthesized from solanesol, then condensed with the reductive product of 2,3 - dimethoxy - 5 - methyl -1,4- benzoquinone in the presence of dry ZnCl2.
综述羧酸衍生物的烯醇盐氧化二聚成键的规律，重点是立体选择性的过程。
Stereoselective oxidative dimerization of the enolate of carboxylic acid derivatives is summarized focusing on the stereoselectivity of the process.
紫杉烯合酶是一种二萜环化酶，催化牛儿基牛儿基焦磷酸形成紫杉醇生物合成过程中的中间体紫杉烯。
Taxadiene synthase, a diterpene cyclase, catalyzes the conversion of geranylgeranyl diphosphate (GGPP) to taxadiene, a key intermediate in Taxol biosynthesis in yew.
目的探讨复方孕二烯酮与去氧孕烯炔雌醇治疗围绝经期功血的临床疗效及安全性。
OBJECTIVE To discuss the clinical curative effect and security of gestodene compound and gestodene-ethinylestradiol used to treat dysfunctional uterine bleeding(DUB) in peri-menopausal period.
紫杉二烯合成酶是第一个被详细研究和目前所发现的最重要的紫杉醇合成代谢酶，它催化紫杉醇生物合成途径中的第一个定向的、慢速的步骤，然而该步骤并非限速步骤。
Taxadiene synthase is the first known, and the most important, enzyme involved in taxol anabolism, which catalyzes the first committed, and a slow but not rate-limiting, step of taxol biosynthesis.
结果验证了在石墨烯上成功引入各种有机基团，如羟基、羧基、氨基、溴基、长链烷基、聚乙二醇、聚苯乙烯等。
The results demonstrate the successful introduction of various organic moieties on graphene, such as hydroxyl, carboxyl, amino, bromine, long alkyl chain, polyethylene glycol, and polystyrene.
除此之外，还有少量日耳曼苗醇、羊毛甾醇、3，5-二烯豆苗烷等。
In addition, the deodorizer distillate contained a trace of germanical sterol, lanosterol, stigmastan-3, 5-diene etc.
二氰基蒽（DCA）敏化的电子转移光氧化使桃金娘烯醇的产率略有改善，但是，添加联苯作共敏化剂使产率几乎翻了一番。
The yield of myrtenol (II) is a little improved by electron-transfer photooxygenation with dicyanoanthracene (DCA), but is almost double by the addition of biphenyl as cosensitizer.
综述了碱金属醇、 酚盐几种不同的合成方法及其在液体聚丁二烯橡胶、丁苯橡胶和有机合成等领域的应用。
The synthesis technologies of alkali metal alkoxides(phenoxides) and their applications in liquid polybutadiene rubber, styrene-butadiene rubber and organic synthesis were reviewed with 35 references.
根据不同材料提取物及几种纯物质溶液的抑菌特点，推测西柏三烯二醇可能是烟叶提取物中主要的抑菌活性物质。
According to the antifungal characteristics of different extracts of tobacco and several pure substances, it was speculated that cembranoids were the main antifungal substance.
在我们的合成方法中，先从-苯乙醇开始合成了-苯乙基氯，再用丙二酸二乙酯的烯醇盐离子进行亲核取代。
First we synthesized the -phenylethyl chloride from -phenylethyl alcohol. Then it was substituted by enolate anion of diethyl malonate and converted to ester.
以有机碱为催化剂 ，通过三唑三甲基丙酮与2 ，4-二氯苯甲醛的反应 ，合成了具有生物活性的外消旋体化合物烯唑醇。
By using alkalamides as the catalyst, diniconazole has been synthesized by the reaction of triazolyl-trimethylacetone and 2,4-dichlorobenzaldehyde.
本发明的试剂盒主要成分包 括：缓冲液、还原型辅酶、草酰乙酸、酮戊二酸、磷酸烯醇式丙酮酸羧化酶、 异柠檬酸脱氢酶及稳定剂；
The kit comprises the following main components: buffer solution, reduced coenzyme, oxaloacetic acid, ketoglutaric acid, phosphoenolpyruvate carboxykinase, isocitric dehydrogenase and a stabilizer.
优选地，蓖麻酸甲酯通过交叉复分解或同质复分解分别转化成高 烯丙一元醇1-癸烯-4-醇或高烯丙多元醇9-十八烯-7，12-二醇。
Preferably, methyl ricinoleate is converted by cross-metathesis or homo-metathesis into the homo-allylic mono-alcohol 1-decene-4-ol or the homo-allylic polyol 9-octadecene-7,12-diol, respectively.
优选地，蓖麻酸甲酯通过交叉复分解或同质复分解分别转化成高 烯丙一元醇1-癸烯-4-醇或高烯丙多元醇9-十八烯-7，12-二醇。
Preferably, methyl ricinoleate is converted by cross-metathesis or homo-metathesis into the homo-allylic mono-alcohol 1-decene-4-ol or the homo-allylic polyol 9-octadecene-7,12-diol, respectively.
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