第一部分描述了通过非对映选择性炔丙基化合成天然产物。
The first part describes the syntheses of natural products by means of diastereoselective propargylation.
三甲基甲硅烷基炔丙基溴的反应产物的产率为71%到84％。
The yields of products for the reaction of trimethylsilyl propargyl bromide are 71 to 84%.
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.
目的是研究3，4-O-异亚丙基莽草酸（ISA）的组织分布。
The objective is to study the tissue distribution of 3,4-o-isopropylidene-shikimic acid(ISA).
N-异丙基丙烯酰胺与聚乙烯醇的质量百分比分别为5％和25％。
The N-isopropylacrylamide and the polyvinyl alcohol are respectively 5 percent and 25percent by weight percent.
这些峰分别相当于乙基和丙基的侧链开裂。
These peaks correspond to side-chain cleavage of the ethyl and propyl groups respectively.
氯化发生在异戊二烯单元附近形成烯丙基氯。
Chlorination occurs adjacent to the isoprene units to form allylic chlorines.
这种烯丙基型的树脂是一种高度透明的、无色材料。
This allyl type resin is a highly transparent, colourless material.
二异丙基醚是一种新的汽油含氧化合物抗爆添加剂。
Diisopropyl ether (DIPE) is a new kind of oxygenated anti knock additive for gasoline.
尤其优选的是羟丙基三甲基铵季铵化的葡萄糖或果糖。
Particularly preferred are hydroxypropyl trimonium quaternized glucose or fructose.
结论羟丙基甲基纤维素可改善片剂溶出度，效果明显。
Conclusion HPMC can improve the dissolution of tablets and the effect is obvious.
取代度对羟丙基淀粉溶液的表观粘度有较明显的影响；
The effect of high substitution on the apparent viscosity was obvious, but PH value is not.
这种橡胶通过烯丙基氯可以比一般丁基橡胶更容易硫化。
Through these the rubber may be vulcanized more readily than normal butyl rubber.
烯丙基氯是一类重要的化学原料，具有广泛的应用价值。
Allyl chloride is an important chemical material, having high potential for practical applications.
研究羟丙基甲基纤维素对磷酸钙骨水泥可注射性的影响。
To study the influence of hydroxypropyl methyl cellulose (HPMC) on injectability of calcium phosphate cements (CPC).
卡波沫为丙烯酸键合蔗糖的烯丙基醚的聚合物，呈酸性。
Kaposi acrylic foam bonded to the allyl ether of sucrose polymers, acidic.
研究了羟丙基醋酸纤维素反渗透膜的制膜工艺和膜性能。
The casting process and reverse osmosis (RO) properties of hydroxy-propyl cellulose acetate (HPCA) membrane were studied.
对羟丙基糯米淀粉微观形态及其淀粉糊性质进行了研究。
The microcosmic configuration and the paste properties of hydroxypropylated waxy rice starch were studied.
对产物组成进行了鉴定，并用红外光谱讨论了烯丙基的结构。
The product was identified and its infrared absorption related to the structure of allyl group was discussed.
目的：研究具有环丙基结构的三唑醇类化合物的抗真菌活性。
Objective: To study the antifungal activity of triazole alcohols by introduction of cyclopropyl as side chain.
考察了不同条件对异丙基黄药合成异丙基黄原酸甲酸乙酯的影响。
The effect that isopropyl xanthogen ethyl formate is synthesized with isopropyl xanthate under differ condition has been studied.
研究了高取代度羟丙基玉米淀粉溶液的流变学性质及其影响因素。
Rheological properties of hydroxypropylated corn starch with high molar substitution and its affecting factors were studied.
并比较了不同条件下缓蚀剂烯丙基硫脲和苯基硫脲缓蚀作用的差异。
The different inhibitory action of Allyl thiourea and Phenyl thiourea have been compared with.
目的：从槟榔中筛选出能与烯丙基焦儿茶酚具有协同抗疟疾的化合物。
Objective:To screen out the principles possessing the anti-malaria synergistic effect with allylpyrocatechol from Semen Arecae.
目的综述羟丙基纤维素在制剂中的应用，以促进在此方面的研究和开发。
OBJECTIVE Summarizing the applications of Hydroxypropyl cellulose in pharmaceutical preparations, in order to promote the development of this research.
前两个阿拉伯数字表示大概的羟丙基含量， 是在干燥的基础上计算的。
The first two digits refer to the approximate percentage content of the hydroxypropoxy group, calculated on a dry basis.
本论文的第二部分工作是3-氟（2-氟）-4炔丙基苄醇的合成探讨。
The second part of this paper relates to the synthesis of 3(2)-fluoro-4-propargyl- benzyl alcohol.
实验结果表明，改性后的催化剂选择性和稳定性提高，异丙基苯的收率增加；
The results showed that selectivity and stability of the catalyst were greatly enhanced and yield of cumene was increased after the modification.
羟丙基醋酸纤维素反渗透膜性能与醋酸纤维素相当，但前者可用于较高的温度。
The membrane property of HPCA is equivalent to ca, but the former can be used at higher temperatures.
羟丙基醋酸纤维素反渗透膜性能与醋酸纤维素相当，但前者可用于较高的温度。
The membrane property of HPCA is equivalent to ca, but the former can be used at higher temperatures.
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